[PATCH] dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe()

[Zhihao Cheng]

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 <hul...@huawei.com>
Signed-off-by: Zhihao Cheng <chengzhih...@huawei.com>
---
 drivers/dma/mv_xor_v2.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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,
-- 
2.25.4