From patchwork Mon Nov 11 17:48:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam via B4 Relay X-Patchwork-Id: 842640 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 877F31A42C4; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731347318; cv=none; b=djBO0gfW8UcUOZBLBpkTbzEGySxiYBrqGn1zkNqeDTWyIUTGp1gPAP87VZh1xnAqK0K+jv8iNE2KWIrWpDKkWKWj2CfLbJN9EecqER5eUCK1yxumz+enfsSk75SZXYtJziE6Aa+fo4B9AoL6fzlyIzDcZLgovJbFUmg2GtMrYk0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731347318; c=relaxed/simple; bh=G69FHYexPwpw/irD51I+oJah3BCb6iFaLGhHwlC23Sc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=kYgBrTiAVMRd1S1Cr9K/4VBEWy5AL1e/L7FhxAB0qKCMlBB2UPMwbvqz/8ZjpZpcZ6GTFvUSOYBqD5u+y/ru5f/GxcHD9GyOpP+b//n5nQe0Clfs4CUNjDG8dHIYYo+dHrzbju8oUIdOx6ei81c+Wc6Mh7FbU2SlW21p7IAXOws= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=C0C9bmDU; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="C0C9bmDU" Received: by smtp.kernel.org (Postfix) with ESMTPS id 28C54C4CED5; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731347318; bh=G69FHYexPwpw/irD51I+oJah3BCb6iFaLGhHwlC23Sc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=C0C9bmDUJRRt3wJShhZ/CieKiCh5u0nABPCkvnDz8pS8l+fmwfewTXgapxgC5xugY ZdOeu2hOBqVt/SQ57N8KR68elYetPbhdOvFDNOTlSVwXKPz+Z1TZiIM6BpINDMp3Sb 6CTgY+7UkK2o7yYOpahHvnyPF7eUNuACqUStjDsnYCzLl+VxoySmVeOhv23/MzMgkL fHFL6VDhNIQGjbdARxv4//iGhgeTtJ2KiAQNVbZnY4/a7mWoxy4BlQamWmzJAO5+qb 0QlXzFvU3ioPxVKSIrpJ/0Xp+uoJJLgxcpAwCgOzlfcdRLo0GlvV3en2rM5z4R1mvy sjcOmwxV41YUA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 17CA0D3ABD8; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) From: Manivannan Sadhasivam via B4 Relay Date: Mon, 11 Nov 2024 23:18:30 +0530 Subject: [PATCH 1/5] scsi: ufs: core: Cancel RTC work during ufshcd_remove() Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241111-ufs_bug_fix-v1-1-45ad8b62f02e@linaro.org> References: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> In-Reply-To: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> To: Alim Akhtar , Avri Altman , Bart Van Assche , "James E.J. Bottomley" , "Martin K. Petersen" , Mike Bi , Bean Huo , =?utf-8?q?Thom?= =?utf-8?q?as_Wei=C3=9Fschuh?= , Luca Porzio , Asutosh Das , Can Guo , Pedro Sousa , Krzysztof Kozlowski , Peter Wang , Stanley Jhu , Yoshihiro Shimoda , Orson Zhai , Baolin Wang , Chunyan Zhang , Matthias Brugger , AngeloGioacchino Del Regno , Santosh Y , Namjae Jeon Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, Manivannan Sadhasivam , stable@vger.kernel.org X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1553; i=manivannan.sadhasivam@linaro.org; h=from:subject:message-id; bh=DVIcv3/NWxzqjqTgGie8L2Gx0Ep0Cnv9hngTv71tWI8=; b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBnMkNyuWNNeuyqHW6wHJWBMDDSw07Unxl6usmOR ufHW4bxRbuJATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCZzJDcgAKCRBVnxHm/pHO 9T95CACMdtOCvpWHJK1lxW2m+V6GbLEuNbAD0lZ2wBw1SXofplwVCWGJdvi40XW/5/caHDa4p3V 8cl5LFsw29z6p0n6ZwMC4Fl2nQjs3S8M+frDwLyelMKBvzuuhqIKf1bp8oJZC8e8q7I3i/+hBbc g0a3GvGZaTFNACN7v88ROg0J9CvhylTTeAWC5gTWLOF/dIr+6AUP+8VTPa9v+zTeGaCibMJvN0e P632FxzWqbrUCP6X/NUCeptORHwrSlkmUtMK3pLku6vxzQRpDtM1l/S4o8ktUdVsglUmtXnzCNW Ix2pNkxM4jEkVNJqrZ9ceWl40kPLs2qa2Tg09M7wbBDHLane X-Developer-Key: i=manivannan.sadhasivam@linaro.org; a=openpgp; fpr=C668AEC3C3188E4C611465E7488550E901166008 X-Endpoint-Received: by B4 Relay for manivannan.sadhasivam@linaro.org/default with auth_id=185 X-Original-From: Manivannan Sadhasivam Reply-To: manivannan.sadhasivam@linaro.org From: Manivannan Sadhasivam Currently, RTC work is only cancelled during __ufshcd_wl_suspend(). When ufshcd is removed in ufshcd_remove(), RTC work is not cancelled. Due to this, any further trigger of the RTC work after ufshcd_remove() would result in a NULL pointer dereference as below: Unable to handle kernel NULL pointer dereference at virtual address 00000000000002a4 Workqueue: events ufshcd_rtc_work Call trace: _raw_spin_lock_irqsave+0x34/0x8c pm_runtime_get_if_active+0x24/0xb4 ufshcd_rtc_work+0x124/0x19c process_scheduled_works+0x18c/0x2d8 worker_thread+0x144/0x280 kthread+0x11c/0x128 ret_from_fork+0x10/0x20 Since RTC work accesses the ufshcd internal structures, it should be cancelled when ufshcd is removed. So do that in ufshcd_remove(), as per the order in ufshcd_init(). Cc: stable@vger.kernel.org # 6.8 Fixes: 6bf999e0eb41 ("scsi: ufs: core: Add UFS RTC support") Signed-off-by: Manivannan Sadhasivam Reviewed-by: Peter Wang Reviewed-by: Bean Huo --- drivers/ufs/core/ufshcd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index f5846598d80e..cc2555333512 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -10225,6 +10225,7 @@ void ufshcd_remove(struct ufs_hba *hba) ufs_hwmon_remove(hba); ufs_bsg_remove(hba); ufs_sysfs_remove_nodes(hba->dev); + cancel_delayed_work_sync(&hba->ufs_rtc_update_work); blk_mq_destroy_queue(hba->tmf_queue); blk_put_queue(hba->tmf_queue); blk_mq_free_tag_set(&hba->tmf_tag_set); From patchwork Mon Nov 11 17:48:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam via B4 Relay X-Patchwork-Id: 842842 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 877A61A2567; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731347318; cv=none; b=BSpZvyhmGi0RQCZDQw+HI2TG0Yd2T6Shw6graubM+gDQSYO8foL2pGIi8UfQ12E5hiXFQakTdaB832EGonNkfd17pWmLQG6Ym+R7vcqzvpxk+YuP2nGV+ZYj5ESOH9fDPBkkiS9mC5V3lXy9qOyjo7c8ns1WfIxbshPg9hkOy5A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731347318; c=relaxed/simple; bh=fuQ00GAi9j38VTJ+Mk4loS5qcVMhkxws4U8+NkGhafM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ls76DaIBfIJGCLVPBddncNux+7yCykF/6C30CF1SmtZE3IOI8g+u1ZkGdRs1rygkzGyJ4RSbOkdvTU8DFaarGwVyJHG3mQPdJjyfHUQ+myl3xbrhUJYxnB/b8YNCHfOPG9aV3QT+GC42jsvCUi8DzjEkj6DVOEwwDo4PpyWIS4E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IJKSMR23; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IJKSMR23" Received: by smtp.kernel.org (Postfix) with ESMTPS id 3BD31C4CED7; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731347318; bh=fuQ00GAi9j38VTJ+Mk4loS5qcVMhkxws4U8+NkGhafM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=IJKSMR23utkGbtJsEmrf3ChMvfo7qg1qtUzv5kPI1oEcHbSDuTrcSy+QB0oN3imyd 6V2ZtWKHMYKU52mDsFWkLGTO2sHibSXgRRaEDO9UGrKkb7oK9dc2KIvvX8DO3F5jxC NFUGAluwBDdaE7X1nR1f7tjBBlGuPjUOF1nhPl7mFrQmGQEg0yQ/t7rOMQbt91iQNb ls2MeMG3f0vLOPoVlXcG/66lDtsAJK/2GRLPF5fCO/lXeelnGK3OqIu7Yim9+BUz7Q KQt9E1jg7uP/1EzUQmZrsmx9ml/ahUduvJs9IO+Celr7MBtm/KncaYRp0TPsB8d5gB KamMRcYIOokEQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C932D3ABDA; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) From: Manivannan Sadhasivam via B4 Relay Date: Mon, 11 Nov 2024 23:18:31 +0530 Subject: [PATCH 2/5] scsi: ufs: qcom: Only free platform MSIs when ESI is enabled Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241111-ufs_bug_fix-v1-2-45ad8b62f02e@linaro.org> References: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> In-Reply-To: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> To: Alim Akhtar , Avri Altman , Bart Van Assche , "James E.J. Bottomley" , "Martin K. Petersen" , Mike Bi , Bean Huo , =?utf-8?q?Thom?= =?utf-8?q?as_Wei=C3=9Fschuh?= , Luca Porzio , Asutosh Das , Can Guo , Pedro Sousa , Krzysztof Kozlowski , Peter Wang , Stanley Jhu , Yoshihiro Shimoda , Orson Zhai , Baolin Wang , Chunyan Zhang , Matthias Brugger , AngeloGioacchino Del Regno , Santosh Y , Namjae Jeon Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, Manivannan Sadhasivam , stable@vger.kernel.org X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1761; i=manivannan.sadhasivam@linaro.org; h=from:subject:message-id; bh=EbvyeMTjnnXzYsrb6hiWc8REw/zP3a1kZd0DUfTawxw=; b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBnMkNzWH2qACCnRiu+0ZVgDwFBCU0StL7JZgEET u7l9pbT9CSJATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCZzJDcwAKCRBVnxHm/pHO 9S7JB/90TEoS/+sDZO0X0MjP4rilFN/QiPGEBYP/qeEnMEreebOIEx2KZBTyGtPoSlH0U11whee h/cQ4BaWi8qJs7uxTqoKKez1yUb2SynV7Xdd2KNrBAl1cdbbKsCE0Se33qic7aRVq7Nooh5mcAQ hGW6jj2UyKiNeTsdwsaYTIMx2Jde6PpwKv90WjQXQxunrwVt/yv3+o0/CJObO4HXIBZy9n4f0Cv OwaEBqBG3UdbwwewFV22V93QQ2gn5pS+WQnQiS3G6aM78r2N50xoSWOLQEN2Q4iIYH5bpMNR4TE f1m2EtfA79wWzq2cuV/irM5AZmWRP3LqXGP9NZApfm7jXMzT X-Developer-Key: i=manivannan.sadhasivam@linaro.org; a=openpgp; fpr=C668AEC3C3188E4C611465E7488550E901166008 X-Endpoint-Received: by B4 Relay for manivannan.sadhasivam@linaro.org/default with auth_id=185 X-Original-From: Manivannan Sadhasivam Reply-To: manivannan.sadhasivam@linaro.org From: Manivannan Sadhasivam Otherwise, it will result in a NULL pointer dereference as below: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Call trace: mutex_lock+0xc/0x54 platform_device_msi_free_irqs_all+0x14/0x20 ufs_qcom_remove+0x34/0x48 [ufs_qcom] platform_remove+0x28/0x44 device_remove+0x4c/0x80 device_release_driver_internal+0xd8/0x178 driver_detach+0x50/0x9c bus_remove_driver+0x6c/0xbc driver_unregister+0x30/0x60 platform_driver_unregister+0x14/0x20 ufs_qcom_pltform_exit+0x18/0xb94 [ufs_qcom] __arm64_sys_delete_module+0x180/0x260 invoke_syscall+0x44/0x100 el0_svc_common.constprop.0+0xc0/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xdc el0t_64_sync_handler+0xc0/0xc4 el0t_64_sync+0x190/0x194 Cc: stable@vger.kernel.org # 6.3 Fixes: 519b6274a777 ("scsi: ufs: qcom: Add MCQ ESI config vendor specific ops") Signed-off-by: Manivannan Sadhasivam --- drivers/ufs/host/ufs-qcom.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index ecdfff2456e3..1bcc538ef8af 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1843,10 +1843,12 @@ static int ufs_qcom_probe(struct platform_device *pdev) static void ufs_qcom_remove(struct platform_device *pdev) { struct ufs_hba *hba = platform_get_drvdata(pdev); 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b=M5CWUkTPz6OCGVKJrWrNKk807OEF7xTW55Hzjum0MoXapsNyhMtWBgyfaQAM9zbia Pc85xmSY+LdvIsx4joB7hU0G9CHWpjFrblQUw3B10SC2lKsuxjt3AgyMkgh+ZRa3I5 ZRCXOfupZIW9ImxPU7fv+k2ILaZtquhUWx0RH3zzUbogxMq5qLtrvHZqr0KQg99HOp h8un79+lAFofx6e5DGK8p5XlNJCJL0AnIZsxegWSB4WR41cZUud+99s2UuH71DZMc9 YFNhuYvtpnv2M8bWe07UCV9L9FhqbcaZuvadMykzp0Ygu+uhinSxok0VOQBHywANcq 3x3//wvZfh2Jg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F521D3ABDC; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) From: Manivannan Sadhasivam via B4 Relay Date: Mon, 11 Nov 2024 23:18:32 +0530 Subject: [PATCH 3/5] scsi: ufs: pltfrm: Disable runtime PM during removal of glue drivers Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241111-ufs_bug_fix-v1-3-45ad8b62f02e@linaro.org> References: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> In-Reply-To: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> To: Alim Akhtar , Avri Altman , Bart Van Assche , "James E.J. Bottomley" , "Martin K. Petersen" , Mike Bi , Bean Huo , =?utf-8?q?Thom?= =?utf-8?q?as_Wei=C3=9Fschuh?= , Luca Porzio , Asutosh Das , Can Guo , Pedro Sousa , Krzysztof Kozlowski , Peter Wang , Stanley Jhu , Yoshihiro Shimoda , Orson Zhai , Baolin Wang , Chunyan Zhang , Matthias Brugger , AngeloGioacchino Del Regno , Santosh Y , Namjae Jeon Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, Manivannan Sadhasivam , stable@vger.kernel.org X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=6985; i=manivannan.sadhasivam@linaro.org; h=from:subject:message-id; bh=Sy95crq9tnc13krDmPxLc+XJOqVK0Wt1rbOYDput31Q=; b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBnMkNzB9iz8QMXyNpVEgtQ5ZelZO076jLLXfkRg asZo5G3GWeJATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCZzJDcwAKCRBVnxHm/pHO 9RINB/4kKYhPEGlh+z0oVskBAUcdG9Do5O49lzzdpQb16Q/tr4H5kvW/5giR5D8w2zt3YsvXW/x p5impfVanaunnhCfFnIqm6yQJFWS0xmUbA67bZU7f60uMmSBnU8pRYH7w1gagJ7KygOGopeOrDL JsCxxoWOy6rJWkYDOw0syS0hs/GhzQa3wptkQ6aarRLAfHwVNq7yzOt09V/GXcgBxCz3BXjE9mG hI8H7Vsz3A3z6iqmNYp+H9Jngpy5EJUk7fccNVJqA1lUegiCAow+2pKXjCEjgKXv41S5pbHFUlT wRSw+JWjdzoHJ2DETem066mlrMXITAspkAfuXdcDbcyF9JgO X-Developer-Key: i=manivannan.sadhasivam@linaro.org; a=openpgp; fpr=C668AEC3C3188E4C611465E7488550E901166008 X-Endpoint-Received: by B4 Relay for manivannan.sadhasivam@linaro.org/default with auth_id=185 X-Original-From: Manivannan Sadhasivam Reply-To: manivannan.sadhasivam@linaro.org From: Manivannan Sadhasivam When the UFSHCD platform glue drivers are removed, runtime PM should be disabled using pm_runtime_disable() to balance the enablement done in ufshcd_pltfrm_init(). This is also reported by PM core when the glue driver is removed and inserted again: ufshcd-qcom 1d84000.ufshc: Unbalanced pm_runtime_enable! So disable runtime PM using a new helper API ufshcd_pltfrm_remove(), that also takes care of removing ufshcd. This helper should be called during the remove() stage of glue drivers. Cc: stable@vger.kernel.org # 3.12 Fixes: 62694735ca95 ("[SCSI] ufs: Add runtime PM support for UFS host controller driver") Signed-off-by: Manivannan Sadhasivam Reviewed-by: Bean Huo --- drivers/ufs/host/cdns-pltfrm.c | 4 +--- drivers/ufs/host/tc-dwc-g210-pltfrm.c | 4 +--- drivers/ufs/host/ufs-exynos.c | 2 +- drivers/ufs/host/ufs-hisi.c | 4 +--- drivers/ufs/host/ufs-mediatek.c | 4 +--- drivers/ufs/host/ufs-qcom.c | 2 +- drivers/ufs/host/ufs-renesas.c | 4 +--- drivers/ufs/host/ufs-sprd.c | 4 +--- drivers/ufs/host/ufshcd-pltfrm.c | 13 +++++++++++++ drivers/ufs/host/ufshcd-pltfrm.h | 1 + 10 files changed, 22 insertions(+), 20 deletions(-) diff --git a/drivers/ufs/host/cdns-pltfrm.c b/drivers/ufs/host/cdns-pltfrm.c index 66811d8d1929..b31aa8411151 100644 --- a/drivers/ufs/host/cdns-pltfrm.c +++ b/drivers/ufs/host/cdns-pltfrm.c @@ -307,9 +307,7 @@ static int cdns_ufs_pltfrm_probe(struct platform_device *pdev) */ static void cdns_ufs_pltfrm_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops cdns_ufs_dev_pm_ops = { diff --git a/drivers/ufs/host/tc-dwc-g210-pltfrm.c b/drivers/ufs/host/tc-dwc-g210-pltfrm.c index a3877592604d..113e0ef7b2cf 100644 --- a/drivers/ufs/host/tc-dwc-g210-pltfrm.c +++ b/drivers/ufs/host/tc-dwc-g210-pltfrm.c @@ -76,10 +76,8 @@ static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev) */ static void tc_dwc_g210_pltfm_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops tc_dwc_g210_pltfm_pm_ops = { diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 5867e6338562..953103b69e2c 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -1961,7 +1961,7 @@ static void exynos_ufs_remove(struct platform_device *pdev) struct exynos_ufs *ufs = ufshcd_get_variant(hba); pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); phy_power_off(ufs->phy); phy_exit(ufs->phy); diff --git a/drivers/ufs/host/ufs-hisi.c b/drivers/ufs/host/ufs-hisi.c index 5ee73ff05251..501609521b26 100644 --- a/drivers/ufs/host/ufs-hisi.c +++ b/drivers/ufs/host/ufs-hisi.c @@ -576,9 +576,7 @@ static int ufs_hisi_probe(struct platform_device *pdev) static void ufs_hisi_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops ufs_hisi_pm_ops = { diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 9a5919434c4e..512b4e43787c 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1869,10 +1869,8 @@ static int ufs_mtk_probe(struct platform_device *pdev) */ static void ufs_mtk_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 1bcc538ef8af..38732dd48331 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1846,7 +1846,7 @@ static void ufs_qcom_remove(struct platform_device *pdev) struct ufs_qcom_host *host = ufshcd_get_variant(hba); pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); if (host->esi_enabled) platform_device_msi_free_irqs_all(hba->dev); } diff --git a/drivers/ufs/host/ufs-renesas.c b/drivers/ufs/host/ufs-renesas.c index 8711e5cbc968..b3a5fc2d44e7 100644 --- a/drivers/ufs/host/ufs-renesas.c +++ b/drivers/ufs/host/ufs-renesas.c @@ -390,9 +390,7 @@ static int ufs_renesas_probe(struct platform_device *pdev) static void ufs_renesas_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static struct platform_driver ufs_renesas_platform = { diff --git a/drivers/ufs/host/ufs-sprd.c b/drivers/ufs/host/ufs-sprd.c index d8b165908809..e455890cf7d4 100644 --- a/drivers/ufs/host/ufs-sprd.c +++ b/drivers/ufs/host/ufs-sprd.c @@ -427,10 +427,8 @@ static int ufs_sprd_probe(struct platform_device *pdev) static void ufs_sprd_remove(struct platform_device *pdev) { - struct ufs_hba *hba = platform_get_drvdata(pdev); - pm_runtime_get_sync(&(pdev)->dev); - ufshcd_remove(hba); + ufshcd_pltfrm_remove(pdev); } static const struct dev_pm_ops ufs_sprd_pm_ops = { diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index 1f4f30d6cb42..bad5b1303eb6 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -524,6 +524,19 @@ int ufshcd_pltfrm_init(struct platform_device *pdev, } EXPORT_SYMBOL_GPL(ufshcd_pltfrm_init); +/** + * ufshcd_pltfrm_remove - Remove ufshcd platform + * @pdev: pointer to Platform device handle + */ +void ufshcd_pltfrm_remove(struct platform_device *pdev) +{ + struct ufs_hba *hba = platform_get_drvdata(pdev); + + ufshcd_remove(hba); + pm_runtime_disable(&pdev->dev); +} +EXPORT_SYMBOL_GPL(ufshcd_pltfrm_remove); + MODULE_AUTHOR("Santosh Yaragnavi "); MODULE_AUTHOR("Vinayak Holikatti "); MODULE_DESCRIPTION("UFS host controller Platform bus based glue driver"); diff --git a/drivers/ufs/host/ufshcd-pltfrm.h b/drivers/ufs/host/ufshcd-pltfrm.h index df387be5216b..3017f8e8f93c 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.h +++ b/drivers/ufs/host/ufshcd-pltfrm.h @@ -31,6 +31,7 @@ int ufshcd_negotiate_pwr_params(const struct ufs_host_params *host_params, void ufshcd_init_host_params(struct ufs_host_params *host_params); int ufshcd_pltfrm_init(struct platform_device *pdev, const struct ufs_hba_variant_ops *vops); +void ufshcd_pltfrm_remove(struct platform_device *pdev); int ufshcd_populate_vreg(struct device *dev, const char *name, struct ufs_vreg **out_vreg, bool skip_current); From patchwork Mon Nov 11 17:48:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam via B4 Relay X-Patchwork-Id: 842840 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CD78D1A9B37; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731347318; cv=none; b=f2e5eSHKQIX78+mWn608UJs156vQKp75EU1MMqGxnFSjCMk/7OamtqJC/x1O64ohp663QqyO6go3IjxMLknrwBshtezdHWODQ9tjYD0xgaQd+x6NPUFOdw1HSWWOCes6ohffwT3m/PUB1tF6VYP0h0s5KHQrvIE0v7WcEVUIVJA= ARC-Message-Signature: i=1; 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b=RhG6k+OwUJC1t04TSz4zO7clZcsLk+DpR5jn7nvioxg06YPsK4iWc7sahrq8Nojv7 9ntUEWatyace+HXfuyaax4YvyNZ7h26d07FlcWa+DuJBYdBMV5fOjmcMFzUIcfFkN4 u25OJptbScTaVk0T7nIhXlm30rgVGG0UA1Oud0msyhRqH5oGHO3HsRJROFL/QCMFMo TJfRzl5Q8PtablDqvQiRMYA+L2C76O3PejEgJ1wn/1E/5ReqM23pkiLSolPd/IVopK nUcSl2xQMwNDRmcuIwOKAln0H2gkXy5k2Oa090ie7n7n1n0v5Fkv/CYL3IkMujzT2E cv1i0UIsWz9og== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 56F31D3ABD8; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) From: Manivannan Sadhasivam via B4 Relay Date: Mon, 11 Nov 2024 23:18:33 +0530 Subject: [PATCH 4/5] scsi: ufs: pltfrm: Drop PM runtime reference count after ufshcd_remove() Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241111-ufs_bug_fix-v1-4-45ad8b62f02e@linaro.org> References: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> In-Reply-To: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> To: Alim Akhtar , Avri Altman , Bart Van Assche , "James E.J. Bottomley" , "Martin K. Petersen" , Mike Bi , Bean Huo , =?utf-8?q?Thom?= =?utf-8?q?as_Wei=C3=9Fschuh?= , Luca Porzio , Asutosh Das , Can Guo , Pedro Sousa , Krzysztof Kozlowski , Peter Wang , Stanley Jhu , Yoshihiro Shimoda , Orson Zhai , Baolin Wang , Chunyan Zhang , Matthias Brugger , AngeloGioacchino Del Regno , Santosh Y , Namjae Jeon Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, Manivannan Sadhasivam , stable@vger.kernel.org X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=3829; i=manivannan.sadhasivam@linaro.org; h=from:subject:message-id; bh=A6udAVAOGCzcxAfO6FoxgGhhFbo2oCHyG4WxttE28E8=; b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBnMkNzOShxk1jlTg40JZj4jvQfsj5GfK53lnNIi ZOY7wXm8qWJATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCZzJDcwAKCRBVnxHm/pHO 9T/OB/4sbcr9eWAA6RiaVVP/+LULxj5QJg3KHy4v2BNhRXeZOONM48cElO2R0XYZjzS27ZonXgh kgHDoLaBxehlHMSnxjlYr62Qlmu2LuKcjRD+O23Eo6yxjhvXyggQK6ed9XJkMPNabDFJwbQ69Kq OW+2NT539Mc6iR4H8uKZx1oTvEdgHjMxeDwWLOl17vpqLu1Ox88OILTTHeEl4KGqDLnUmddrV79 Zzya0F92nny+pVesqZD3ro8KyzXMco+GIc+k2YTwQmPgn9CvLInsQzVKjGW94stZ8bRWcOYUmUu uZUBJLAza5JxTRgweA1wVS23jdCS6EdWIApaMfCASCOl+LTJ X-Developer-Key: i=manivannan.sadhasivam@linaro.org; a=openpgp; fpr=C668AEC3C3188E4C611465E7488550E901166008 X-Endpoint-Received: by B4 Relay for manivannan.sadhasivam@linaro.org/default with auth_id=185 X-Original-From: Manivannan Sadhasivam Reply-To: manivannan.sadhasivam@linaro.org From: Manivannan Sadhasivam During the remove stage of glue drivers, some of them are incrementing the reference count using pm_runtime_get_sync(), before removing the ufshcd using ufshcd_remove(). But they are not dropping that reference count after ufshcd_remove() to balance the refcount. So drop the reference count by calling pm_runtime_put_noidle() after ufshcd_remove(). Since the behavior is applicable to all glue drivers, move the PM handling to ufshcd_pltfrm_remove(). Cc: stable@vger.kernel.org # 3.12 Fixes: 62694735ca95 ("[SCSI] ufs: Add runtime PM support for UFS host controller driver") Signed-off-by: Manivannan Sadhasivam Reviewed-by: Peter Wang --- drivers/ufs/host/tc-dwc-g210-pltfrm.c | 1 - drivers/ufs/host/ufs-exynos.c | 1 - drivers/ufs/host/ufs-mediatek.c | 1 - drivers/ufs/host/ufs-qcom.c | 1 - drivers/ufs/host/ufs-sprd.c | 1 - drivers/ufs/host/ufshcd-pltfrm.c | 2 ++ 6 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/ufs/host/tc-dwc-g210-pltfrm.c b/drivers/ufs/host/tc-dwc-g210-pltfrm.c index 113e0ef7b2cf..c6f8565ede21 100644 --- a/drivers/ufs/host/tc-dwc-g210-pltfrm.c +++ b/drivers/ufs/host/tc-dwc-g210-pltfrm.c @@ -76,7 +76,6 @@ static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev) */ static void tc_dwc_g210_pltfm_remove(struct platform_device *pdev) { - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); } diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 953103b69e2c..6dedcc8b22b4 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -1960,7 +1960,6 @@ static void exynos_ufs_remove(struct platform_device *pdev) struct ufs_hba *hba = platform_get_drvdata(pdev); struct exynos_ufs *ufs = ufshcd_get_variant(hba); - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); phy_power_off(ufs->phy); diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 512b4e43787c..c834d38921b6 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1869,7 +1869,6 @@ static int ufs_mtk_probe(struct platform_device *pdev) */ static void ufs_mtk_remove(struct platform_device *pdev) { - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); } diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 38732dd48331..91127fb17186 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -1845,7 +1845,6 @@ static void ufs_qcom_remove(struct platform_device *pdev) struct ufs_hba *hba = platform_get_drvdata(pdev); struct ufs_qcom_host *host = ufshcd_get_variant(hba); - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); if (host->esi_enabled) platform_device_msi_free_irqs_all(hba->dev); diff --git a/drivers/ufs/host/ufs-sprd.c b/drivers/ufs/host/ufs-sprd.c index e455890cf7d4..d220978c2d8c 100644 --- a/drivers/ufs/host/ufs-sprd.c +++ b/drivers/ufs/host/ufs-sprd.c @@ -427,7 +427,6 @@ static int ufs_sprd_probe(struct platform_device *pdev) static void ufs_sprd_remove(struct platform_device *pdev) { - pm_runtime_get_sync(&(pdev)->dev); ufshcd_pltfrm_remove(pdev); } diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index bad5b1303eb6..b8dadd0a2f4c 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -532,8 +532,10 @@ void ufshcd_pltfrm_remove(struct platform_device *pdev) { struct ufs_hba *hba = platform_get_drvdata(pdev); + pm_runtime_get_sync(&pdev->dev); ufshcd_remove(hba); pm_runtime_disable(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); } EXPORT_SYMBOL_GPL(ufshcd_pltfrm_remove); From patchwork Mon Nov 11 17:48:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam via B4 Relay X-Patchwork-Id: 842639 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C79E71A76DA; 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dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="c2yPXxfU" Received: by smtp.kernel.org (Postfix) with ESMTPS id 7E462C4CED4; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731347318; bh=9AGnp6ItSWGEIvcEPYHznGFKAqdl+UeCsmI5khCjdS4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=c2yPXxfUHlgwnZrp7qGKCLwqQZc+L/+2ddJpo751E4RCy8EIs4Ij7Ka8P3CxN0rgM JV0JkMFh83ttQ4ajP/K3Q87yt+g5CZWBQOxj8AAE0SBeXg6T4NHcHE3Gb9bybL/smS uPpgH6DjmDqUljRvBXspip4Pc9w3ocTEseJn4X9indc3hcj/s/jdwoGWT+l5TruKrx sUzNvn3eLVILCLlS+ImDoqSZa5Iv7xX5k8Q78jUk5BhSGh3M0+tf2nozGfxZ+Y9CG0 +2L/1YOD6Ul71mcvdcHaYeGyAHaIvVAiXaUYUzh7pA4PMa5wbuU40lwG1LL9h0ejxp +vxbc+hVknnBw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 745DCD3ABDC; Mon, 11 Nov 2024 17:48:38 +0000 (UTC) From: Manivannan Sadhasivam via B4 Relay Date: Mon, 11 Nov 2024 23:18:34 +0530 Subject: [PATCH 5/5] scsi: ufs: pltfrm: Dellocate HBA during ufshcd_pltfrm_remove() Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241111-ufs_bug_fix-v1-5-45ad8b62f02e@linaro.org> References: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> In-Reply-To: <20241111-ufs_bug_fix-v1-0-45ad8b62f02e@linaro.org> To: Alim Akhtar , Avri Altman , Bart Van Assche , "James E.J. Bottomley" , "Martin K. Petersen" , Mike Bi , Bean Huo , =?utf-8?q?Thom?= =?utf-8?q?as_Wei=C3=9Fschuh?= , Luca Porzio , Asutosh Das , Can Guo , Pedro Sousa , Krzysztof Kozlowski , Peter Wang , Stanley Jhu , Yoshihiro Shimoda , Orson Zhai , Baolin Wang , Chunyan Zhang , Matthias Brugger , AngeloGioacchino Del Regno , Santosh Y , Namjae Jeon Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-renesas-soc@vger.kernel.org, Manivannan Sadhasivam , stable@vger.kernel.org X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=858; i=manivannan.sadhasivam@linaro.org; h=from:subject:message-id; bh=Ni+UMeWf+BGon+9C+5L79ezS+b3LAVE2IIekW3iQ9ww=; b=owEBbQGS/pANAwAKAVWfEeb+kc71AcsmYgBnMkNz9MkYBdX398GAmfAQsbBw3ppRcumSjtutx sOoQ3zoTZSJATMEAAEKAB0WIQRnpUMqgUjL2KRYJ5dVnxHm/pHO9QUCZzJDcwAKCRBVnxHm/pHO 9VkjB/49ADTQJu1nV/d8/ynBuBn+ItayJXBzyHg85nSVkxMlnER5vFjUX6+uT2sZalqVXL/QI8o 3OX7c+Wq8TTYC69nVWpjgtcBWy0B/ppoGuhVdk62pN1guua37AURco5SSqzjrJCBheHwQJkTa+s uIoNZuFlJhQT/wAUu/f6zmX6aMToz3Cz4NLYPC3mkyhLlZQ2CMY7lvqpRmVpFkGb8EZVcOc1RP6 q1BB36FdG4dvO5e3jqx/ALyfnfapbycjFzXYZHXu9CNyUlesnt/Eglfz9XvclcQIzpgusXtqRxW 3+zVfvcoGPZP1DfDfFedH8LuL2Ykimb6v6PRL7/ry3dN066b X-Developer-Key: i=manivannan.sadhasivam@linaro.org; a=openpgp; fpr=C668AEC3C3188E4C611465E7488550E901166008 X-Endpoint-Received: by B4 Relay for manivannan.sadhasivam@linaro.org/default with auth_id=185 X-Original-From: Manivannan Sadhasivam Reply-To: manivannan.sadhasivam@linaro.org From: Manivannan Sadhasivam This will ensure that the scsi host is cleaned up properly using scsi_host_dev_release(). Otherwise, it may lead to memory leaks. Cc: stable@vger.kernel.org # 4.4 Fixes: 03b1781aa978 ("[SCSI] ufs: Add Platform glue driver for ufshcd") Signed-off-by: Manivannan Sadhasivam Reviewed-by: Peter Wang Reviewed-by: Bean Huo --- drivers/ufs/host/ufshcd-pltfrm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index b8dadd0a2f4c..505572d4fa87 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -534,6 +534,7 @@ void ufshcd_pltfrm_remove(struct platform_device *pdev) pm_runtime_get_sync(&pdev->dev); ufshcd_remove(hba); + ufshcd_dealloc_host(hba); pm_runtime_disable(&pdev->dev); pm_runtime_put_noidle(&pdev->dev); }