From mboxrd@z Thu Jan 1 00:00:00 1970 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 861F812BF03; Wed, 7 Feb 2024 21:21:51 +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=1707340911; cv=none; b=ob2Zcv75FmxDrKWXPXeoLiucj3SjdHbNcE84IMfQFF5OkydEXtcF5U09UUTa7ocufrumhiLz0Xu+Qf5MnfFfiaknxMfLTFFgYpBAoLwXlnVucO8Dz7CC4Q+XulpoYOMKfdLcKU05w7XiFOFxNLhdzNBcCSkrKQNl5ojqGUORBug= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707340911; c=relaxed/simple; bh=aJvmUaiggQ0iLWKRJiHo0hkfMIltzOhZKXRJXPUm/mI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pBkd6ApyHeu8NdE6+CCLhXPXvhZUwZSAutjp7A9BkDLnMATz7Fmv7rb7U0ymKIOVuUIpS5ChIxD88/oSOAAayW+Qw/fL8MNH1Io9rFBaQEPCUygTvkDCSya7Rw8xH3vhISeEgL/n+7ARrxgGSS5P3hAt1i33sPmpq1QYe+jV0rA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qg15/r68; 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="qg15/r68" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1542EC433F1; Wed, 7 Feb 2024 21:21:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707340911; bh=aJvmUaiggQ0iLWKRJiHo0hkfMIltzOhZKXRJXPUm/mI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qg15/r68OpRa3br74eJtFHKOKdCknG2I+q6JiQl5cl3u82paDwaInY67r0495QtYl 7PHdGGE8JDeTLEN3ZMTmSWenlqiaX7lwXdH1dGy7cvgcwYMtk3TU2GgAMvhIP8NZ4h KKeWxVDdCQ6rpfcclAbbx6UqveNFfn/+j4VV2k1l3knM2tpqx04VwSk2J00Hw4/ujf XSt28WMjON1m5aKKi0ZkxXTjcCjtjHI06spz5uoE1fD+koPEXd1lR50jnVmrtfB5Cv 3fGFrFUJdJ/PmYcxJbAKwpbvC/BRSFdmuHkohw9D6n4UVaxt/YRHDNOWidOj5dBQl0 0/4moJK/0PAJQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Kunwu Chan , Vinod Koul , Sasha Levin , peter.ujfalusi@gmail.com, dmaengine@vger.kernel.org Subject: [PATCH AUTOSEL 6.7 05/44] dmaengine: ti: edma: Add some null pointer checks to the edma_probe Date: Wed, 7 Feb 2024 16:20:32 -0500 Message-ID: <20240207212142.1399-5-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240207212142.1399-1-sashal@kernel.org> References: <20240207212142.1399-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.7.4 Content-Transfer-Encoding: 8bit From: Kunwu Chan [ Upstream commit 6e2276203ac9ff10fc76917ec9813c660f627369 ] devm_kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity. Signed-off-by: Kunwu Chan Link: https://lore.kernel.org/r/20240118031929.192192-1-chentao@kylinos.cn Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/dma/ti/edma.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c index f1f920861fa9..5f8d2e93ff3f 100644 --- a/drivers/dma/ti/edma.c +++ b/drivers/dma/ti/edma.c @@ -2404,6 +2404,11 @@ static int edma_probe(struct platform_device *pdev) if (irq > 0) { irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s_ccint", dev_name(dev)); + if (!irq_name) { + ret = -ENOMEM; + goto err_disable_pm; + } + ret = devm_request_irq(dev, irq, dma_irq_handler, 0, irq_name, ecc); if (ret) { @@ -2420,6 +2425,11 @@ static int edma_probe(struct platform_device *pdev) if (irq > 0) { irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s_ccerrint", dev_name(dev)); + if (!irq_name) { + ret = -ENOMEM; + goto err_disable_pm; + } + ret = devm_request_irq(dev, irq, dma_ccerr_handler, 0, irq_name, ecc); if (ret) { -- 2.43.0