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Mon, 17 Jun 2024 02:28:48 -0500 Received: from vijendar-X570-GAMING-X.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server id 15.1.2507.39 via Frontend Transport; Mon, 17 Jun 2024 02:28:45 -0500 From: Vijendar Mukunda To: CC: , , , , "Vijendar Mukunda" , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , "Syed Saba Kareem" , "open list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." , open list Subject: [PATCH 1/8] ASoC: amd: acp: add a null check for chip_pdev structure Date: Mon, 17 Jun 2024 12:58:34 +0530 Message-ID: <20240617072844.871468-1-Vijendar.Mukunda@amd.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: None (SATLEXMB04.amd.com: Vijendar.Mukunda@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF00001CE0:EE_|CH3PR12MB9453:EE_ X-MS-Office365-Filtering-Correlation-Id: 5e953331-0078-4f72-7c24-08dc8e9f21be X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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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 X-Mailman-Version: 3.3.9 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: When acp platform device creation is skipped, chip->chip_pdev value will remain NULL. Add NULL check for chip->chip_pdev structure in snd_acp_resume() function to avoid null pointer dereference. Fixes: 088a40980efb ("ASoC: amd: acp: add pm ops support for acp pci driver") Signed-off-by: Vijendar Mukunda --- sound/soc/amd/acp/acp-pci.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/sound/soc/amd/acp/acp-pci.c b/sound/soc/amd/acp/acp-pci.c index ad320b29e87d..aa3e72d13451 100644 --- a/sound/soc/amd/acp/acp-pci.c +++ b/sound/soc/amd/acp/acp-pci.c @@ -199,10 +199,12 @@ static int __maybe_unused snd_acp_resume(struct device *dev) ret = acp_init(chip); if (ret) dev_err(dev, "ACP init failed\n"); - child = chip->chip_pdev->dev; - adata = dev_get_drvdata(&child); - if (adata) - acp_enable_interrupts(adata); + if (chip->chip_pdev) { + child = chip->chip_pdev->dev; + adata = dev_get_drvdata(&child); + if (adata) + acp_enable_interrupts(adata); + } return ret; }