netdev - [PATCH] staging: qlge: unmap dma when lock failed

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Message-Id: <20200517054638.10764-1-xyz.sun.ok@gmail.com>
Date:   Sun, 17 May 2020 13:46:38 +0800
From:   Xiangyang Zhang <xyz.sun.ok@...il.com>
To:     manishc@...vell.com, GR-Linux-NIC-Dev@...vell.com
Cc:     gregkh@...uxfoundation.org, netdev@...r.kernel.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Xiangyang Zhang <xyz.sun.ok@...il.com>
Subject: [PATCH] staging: qlge: unmap dma when lock failed

DMA not unmapped when lock failed, this patch fixed it.

Signed-off-by: Xiangyang Zhang <xyz.sun.ok@...il.com>
---
 drivers/staging/qlge/qlge_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/qlge/qlge_main.c b/drivers/staging/qlge/qlge_main.c
index a9163fb659d9..402edaeffe12 100644
--- a/drivers/staging/qlge/qlge_main.c
+++ b/drivers/staging/qlge/qlge_main.c
@@ -227,7 +227,7 @@ int ql_write_cfg(struct ql_adapter *qdev, void *ptr, int size, u32 bit,
 
 	status = ql_sem_spinlock(qdev, SEM_ICB_MASK);
 	if (status)
-		return status;
+		goto lock_failed;
 
 	status = ql_wait_cfg(qdev, bit);
 	if (status) {
@@ -249,6 +249,7 @@ int ql_write_cfg(struct ql_adapter *qdev, void *ptr, int size, u32 bit,
 	status = ql_wait_cfg(qdev, bit);
 exit:
 	ql_sem_unlock(qdev, SEM_ICB_MASK);	/* does flush too */
+lock_failed:
 	dma_unmap_single(&qdev->pdev->dev, map, size, direction);
 	return status;
 }
-- 
2.19.1