From c95e6515a8c065862361f7e0e452978ade7f94ec Mon Sep 17 00:00:00 2001
From: Zhihao Cheng <chengzhihao1@huawei.com>
Date: Tue, 24 Nov 2020 09:08:13 +0800
Subject: [PATCH] dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe()
Git-commit: c95e6515a8c065862361f7e0e452978ade7f94ec
Patch-mainline: v5.11-rc1
References: git-fixes
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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,
--
2.26.2