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@huawei.com>
Link: https://lore.kernel.org/r/20200428063155.42349-1-yanaijie@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c
index f6ab3f28c8382160a2dba51c49079925f5ce69f7..6e27fe4fcca329b4cf19c0c6ff070c1bd96cf016 100644 (file)
--- 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)