| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.4 168/453] dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe() | Date | Mon, 28 Dec 2020 13:46:44 +0100 |
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From: Zhihao Cheng <chengzhihao1@huawei.com>
[ 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 <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> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 e3850f04f6763..889a94af4c851 100644 --- a/drivers/dma/mv_xor_v2.c +++ b/drivers/dma/mv_xor_v2.c @@ -766,8 +766,10 @@ 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, -- 2.27.0
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