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authorZhihao Cheng <chengzhihao1@huawei.com>2020-11-24 09:08:13 +0800
committerVinod Koul <vkoul@kernel.org>2020-11-24 22:55:15 +0530
commitc95e6515a8c065862361f7e0e452978ade7f94ec (patch)
treeae48059cc10871b932ee5911fc45505cf1a92d08
parent0ab785c894e618587e83bb67e8a8e96649868ad1 (diff)
dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe()
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 <hulkci@huawei.com> Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Link: https://lore.kernel.org/r/20201124010813.1939095-1-chengzhihao1@huawei.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
-rw-r--r--drivers/dma/mv_xor_v2.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c
index 2753a6b916f6..9b0d463f89bb 100644
--- a/drivers/dma/mv_xor_v2.c
+++ b/drivers/dma/mv_xor_v2.c
@@ -771,8 +771,10 @@ 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,