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 58C1014460F; Wed, 7 Feb 2024 21:23:46 +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=1707341026; cv=none; b=dq2/3vWTUPz9HajNd4KxBrsvZSpgwi1k6SMlU6tnDvFzYb6AB3YeIbuFbBggYu14zmW0PMKlHvz1ARO+YgVsxQTzS8GCeF777kbcpLqDHswPtDpQpeeSToziHaGCeBlH/esl0SVEgvNwxrVBo0gNBln+qCZcxLnyyvIOICBZXtc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707341026; c=relaxed/simple; bh=0YpCKTLThLkhX4Tktw9pXYZ9gVRBvU3mBo6LJe4QwEE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jAScUSZPW+70eC0YJO9qGhrgHw0pX8qYhXHqBgdhW7ds2anyQ4aXPhqw7+rePiiCnvgnyWxblesikd9djpOumoILqLfKqLyCce5mZ1DCyNkAs3Y+SjIDPDZzP9919txGcrmWFeSVajNV+eFZ1zZ72NCjixSa5rtzZ1dKxRoCJTo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mo2V0+ds; 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="mo2V0+ds" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3DB80C433F1; Wed, 7 Feb 2024 21:23:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707341026; bh=0YpCKTLThLkhX4Tktw9pXYZ9gVRBvU3mBo6LJe4QwEE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mo2V0+dsVvAAnlwUzuNggOyAVAac5YUon7+xndKjql9sweDzThVFs/T/V6c+jKPvZ R0bylp6QJnRv01oaGozkp9IJ5c+e7znMIhhmpRkQJ8I/BC7Ajv04qobBUL2V9KEMSe 1oPzPE2RiMGWudqqgM2x374n+dN0ufOaNXgnsWD+8As85/DyjjEvpHRKcJOPm3aJrU gY/agjrfZ4NGrrazG6HhxGvLOPU1KeEfgTp/gMdcuWxw0swgoVc4uDkG2ItLjECxHI Hrn4W3yPsdbvBgqmBK4qlq8CgY7G2MSsVxOxl2QwOs/Iv6VdKDlJaLnJWVKHvZ/86G xfxQ+sz8WmZ/g== 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 6.6 05/38] dmaengine: ti: edma: Add some null pointer checks to the edma_probe Date: Wed, 7 Feb 2024 16:22:51 -0500 Message-ID: <20240207212337.2351-5-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240207212337.2351-1-sashal@kernel.org> References: <20240207212337.2351-1-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 6.6.16 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 33d6d931b33b..155c409d2b43 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