From: Zhihao Cheng Date: Tue, 24 Nov 2020 01:08:13 +0000 (+0800) Subject: dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe() X-Git-Tag: v4.19.164~182 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=6a76b1da25be1985970573c3ec7c06dca79b5a12;p=users%2Fdwmw2%2Flinux.git dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe() [ Upstream commit c95e6515a8c065862361f7e0e452978ade7f94ec ] Return the corresponding error code when first_msi_entry() returns NULL in mv_xor_v2_probe(). Fixes: 19a340b1a820430 ("dmaengine: mv_xor_v2: new driver") Reported-by: Hulk Robot Signed-off-by: Zhihao Cheng Link: https://lore.kernel.org/r/20201124010813.1939095-1-chengzhihao1@huawei.com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c index 8dc0aa4d73ab8..462adf7e4e952 100644 --- a/drivers/dma/mv_xor_v2.c +++ b/drivers/dma/mv_xor_v2.c @@ -777,8 +777,10 @@ static int mv_xor_v2_probe(struct platform_device *pdev) goto disable_clk; msi_desc = first_msi_entry(&pdev->dev); - if (!msi_desc) + if (!msi_desc) { + ret = -ENODEV; goto free_msi_irqs; + } xor_dev->msi_desc = msi_desc; ret = devm_request_irq(&pdev->dev, msi_desc->irq,