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

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Message-ID: <20200428063155.42349-1-yanaijie@huawei.com>
Date:   Tue, 28 Apr 2020 14:31:55 +0800
From:   Jason Yan <yanaijie@...wei.com>
To:     <gregkh@...uxfoundation.org>, <linux-kernel@...r.kernel.org>
CC:     Jason Yan <yanaijie@...wei.com>
Subject: [PATCH] uio: remove unneeded variable "ret" in uio_dmem_genirq_open

Fix the following coccicheck warning:

drivers/uio/uio_dmem_genirq.c:47:5-8: Unneeded variable: "ret". Return
"0" on line 71

Signed-off-by: Jason Yan <yanaijie@...wei.com>
---
 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 f6ab3f28c838..6e27fe4fcca3 100644
--- a/drivers/uio/uio_dmem_genirq.c
+++ b/drivers/uio/uio_dmem_genirq.c
@@ -44,7 +44,6 @@ 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];
@@ -68,7 +67,7 @@ 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)
-- 
2.21.1