linux-kernel - [PATCH] dmaengine: ioatdma: Fix error handling path in 'ioat_dma_self

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Date:   Thu, 20 Jul 2017 00:16:48 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     dan.j.williams@...el.com, vinod.koul@...el.com,
        dave.jiang@...el.com
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] dmaengine: ioatdma: Fix error handling path in 'ioat_dma_self_test()'

If the 'memcmp' fails, free allocated resources as done in all other
error handling paths.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
Please review carefully, this patch looks "too obvious" to me!
---
 drivers/dma/ioat/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c
index ed8ed1192775..948fc1f8fb5c 100644
--- a/drivers/dma/ioat/init.c
+++ b/drivers/dma/ioat/init.c
@@ -390,7 +390,7 @@ static int ioat_dma_self_test(struct ioatdma_device *ioat_dma)
 	if (memcmp(src, dest, IOAT_TEST_SIZE)) {
 		dev_err(dev, "Self-test copy failed compare, disabling\n");
 		err = -ENODEV;
-		goto free_resources;
+		goto unmap_dma;
 	}
 
 unmap_dma:
-- 
2.11.0