From patchwork Tue Apr 4 09:21:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?P=C3=A9ter_Ujfalusi?= X-Patchwork-Id: 670392 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6ABDAC6FD1D for ; Tue, 4 Apr 2023 09:22:44 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id BEB6A1FE; Tue, 4 Apr 2023 11:21:51 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz BEB6A1FE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1680600161; bh=djf9lcvpchOEZVIAgZqKO60P4CvQK1s8vysYvuz2adI=; h=From:To:Subject:Date:In-Reply-To:References:CC:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=SdPkpCn3yLD9HoCVQGgOSysc4SimuK1ZmpHTxf4fviMpdlZX5M78QuUBHDO054yKo 0F4wi5W+heLlfIywjwByPdLQBWrrkIJzsHM5t+OCXkWxwFcRM3gL8uJ2mMFfO35OC9 Jwr2YudoM7aBnBWfLIVRCJJFvOOjp6mj3vEdidRE= Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 64C95F8052E; Tue, 4 Apr 2023 11:21:01 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 0D97EF80423; Tue, 4 Apr 2023 11:20:57 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 39BF8F8024C for ; Tue, 4 Apr 2023 11:20:48 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 39BF8F8024C Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=MR9PvD0U DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680600050; x=1712136050; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=djf9lcvpchOEZVIAgZqKO60P4CvQK1s8vysYvuz2adI=; b=MR9PvD0U6Hgroi3wh+9U8f1rrhQ7uttWeTGzKPeviEgk0mKB/CONs307 9GZKBS9OUjfHr5uRhVqBYKvAolrzxjPJ+YQR7j9hybgueyUDclfpLdqFi KpBZWiZI6e3DYYrW0NRzGaRou1m74wmpt4YxFJ+u+UbBrnssEdF3Qkl+l N+Es9KZiLdi0QVXYmnaiCp4TFHaidMP6PLk1BOuxRidOj+iknZH1+GZDy dd8gmfBfLLNjm6bfTxiMB3SLRGQwH44zbmyV7cYVD6ANUZ1R2CmoHBrD2 Dvinw/hMKbpVmEvsKn8ol2ypPRVK+smyuZIV0eKWtBOXYHWfs+UFfdUMT A==; X-IronPort-AV: E=McAfee;i="6600,9927,10669"; a="339620505" X-IronPort-AV: E=Sophos;i="5.98,317,1673942400"; d="scan'208";a="339620505" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Apr 2023 02:20:44 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10669"; a="688819951" X-IronPort-AV: E=Sophos;i="5.98,317,1673942400"; d="scan'208";a="688819951" Received: from vsysoevx-mobl.ger.corp.intel.com (HELO pujfalus-desk.ger.corp.intel.com) ([10.249.33.42]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Apr 2023 02:20:42 -0700 From: Peter Ujfalusi To: lgirdwood@gmail.com, broonie@kernel.org Subject: [PATCH 01/12] ASoC: SOF: Intel: hda-stream: Do not dereference hstream until it is safe Date: Tue, 4 Apr 2023 12:21:04 +0300 Message-Id: <20230404092115.27949-2-peter.ujfalusi@linux.intel.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230404092115.27949-1-peter.ujfalusi@linux.intel.com> References: <20230404092115.27949-1-peter.ujfalusi@linux.intel.com> MIME-Version: 1.0 Message-ID-Hash: CFJGNTDAGYZO7QJAOS35ONEJYDVPYLD5 X-Message-ID-Hash: CFJGNTDAGYZO7QJAOS35ONEJYDVPYLD5 X-MailFrom: peter.ujfalusi@linux.intel.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: alsa-devel@alsa-project.org, pierre-louis.bossart@linux.intel.com, ranjani.sridharan@linux.intel.com, kai.vehmanen@linux.intel.com, rander.wang@intel.com X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Only access hext_stream->hstream after it has been checked for NULL pointer Signed-off-by: Peter Ujfalusi Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Rander Wang --- sound/soc/sof/intel/hda-stream.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/sound/soc/sof/intel/hda-stream.c b/sound/soc/sof/intel/hda-stream.c index c37ef581637f..50e92996f928 100644 --- a/sound/soc/sof/intel/hda-stream.c +++ b/sound/soc/sof/intel/hda-stream.c @@ -485,9 +485,8 @@ int hda_dsp_stream_hw_params(struct snd_sof_dev *sdev, { const struct sof_intel_dsp_desc *chip = get_chip_info(sdev->pdata); struct hdac_bus *bus = sof_to_bus(sdev); - struct hdac_stream *hstream = &hext_stream->hstream; - int sd_offset = SOF_STREAM_SD_OFFSET(hstream); - int ret; + struct hdac_stream *hstream; + int sd_offset, ret; u32 dma_start = SOF_HDA_SD_CTL_DMA_START; u32 mask; u32 run; @@ -502,6 +501,9 @@ int hda_dsp_stream_hw_params(struct snd_sof_dev *sdev, return -ENODEV; } + hstream = &hext_stream->hstream; + sd_offset = SOF_STREAM_SD_OFFSET(hstream); + /* decouple host and link DMA */ mask = 0x1 << hstream->index; snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, SOF_HDA_REG_PP_PPCTL,