[PATCH 3.12 001/235] driver core: Delete an unnecessary check before the function call "put_device"

From: Jiri Slaby
Date: Fri Jan 27 2017 - 07:05:39 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit 5f0163a5ee9cc7c59751768bdfd94a73186debba upstream.

The put_device() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/base/core.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 944fecd32e9f..90458b1719a8 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1185,8 +1185,7 @@ done:
kobject_del(&dev->kobj);
Error:
cleanup_device_parent(dev);
- if (parent)
- put_device(parent);
+ put_device(parent);
name_error:
kfree(dev->p);
dev->p = NULL;
--
2.11.0