[PATCH] driver: uio: fix possible memory leak in uio_open

[liujian]

Fixes: 57c5f4df0a5a ("uio: fix crash after the device is unregistered")
Signed-off-by: liujian <liujian56@xxxxxxxxxx>
---
 drivers/uio/uio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 5c10fc7..bde7d7a 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -496,7 +496,7 @@ static int uio_open(struct inode *inode, struct file *filep)
 	if (!idev->info) {
 		mutex_unlock(&idev->info_lock);
 		ret = -EINVAL;
-		goto err_alloc_listener;
+		goto err_infoopen;
 	}
 
 	if (idev->info && idev->info->open)
@@ -508,6 +508,7 @@ static int uio_open(struct inode *inode, struct file *filep)
 	return 0;
 
 err_infoopen:
+	filep->private_data = NULL;
 	kfree(listener);
 
 err_alloc_listener:
-- 
2.7.4