linux-kernel - [PATCH] uio:remove unneeded variable ret

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Message-Id: <1547034839-3493-1-git-send-email-wdjjwb@163.com>
Date:   Wed,  9 Jan 2019 19:53:59 +0800
From:   wangbo <wdjjwb@....com>
To:     linux-kernel@...r.kernel.org
Cc:     gregkh@...uxfoundation.org, wang.bo116@....com.cn
Subject: [PATCH] uio:remove unneeded variable ret

In uio_dmem_genirq_open the variable ret is unneededw,remove it now.

Signed-off-by: wangbo <wang.bo116@....com.cn>
---
 drivers/uio/uio_dmem_genirq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c
index 003bada..2be7569 100644
--- a/drivers/uio/uio_dmem_genirq.c
+++ b/drivers/uio/uio_dmem_genirq.c
@@ -47,7 +47,6 @@ static int uio_dmem_genirq_open(struct uio_info *info, struct inode *inode)
 {
 	struct uio_dmem_genirq_platdata *priv = info->priv;
 	struct uio_mem *uiomem;
-	int ret = 0;
 	int dmem_region = priv->dmem_region_start;
 
 	uiomem = &priv->uioinfo->mem[priv->dmem_region_start];
@@ -71,7 +70,7 @@ static int uio_dmem_genirq_open(struct uio_info *info, struct inode *inode)
 	mutex_unlock(&priv->alloc_lock);
 	/* Wait until the Runtime PM code has woken up the device */
 	pm_runtime_get_sync(&priv->pdev->dev);
-	return ret;
+	return 0;
 }
 
 static int uio_dmem_genirq_release(struct uio_info *info, struct inode *inode)
-- 
2.7.4