[PATCH 3.18 043/120] HID: hid-ntrig: add error handling for sysfs_create_group

Greg Kroah-Hartman
2018-10-11T15:37:37Z

From: Zhouyang Jia <jiazhouyang09@gmail.com>

[ Upstream commit 44d4d51de9a3534a2b63d69efda02a10e66541e4 ]

When sysfs_create_group fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling sysfs_create_group.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hid/hid-ntrig.c | 2 ++
1 file changed, 2 insertions(+)

--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -953,6 +953,8 @@ static int ntrig_probe(struct hid_device

ret = sysfs_create_group(&hdev->dev.kobj,
&ntrig_attribute_group);
+ if (ret)
+ hid_err(hdev, "cannot create sysfs group\n");

return 0;