drm_aux-dev: fix error handling in drm_dp_aux_dev_init()

If class_create() fails, there is no need for class_destroy().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1467237135-13075-1-git-send-email-khoroshilov@ispras.ru

diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/drm_dp_aux_dev.c
index 3334baa..734f86a 100644 (file)
--- a/drivers/gpu/drm/drm_dp_aux_dev.c
+++ b/drivers/gpu/drm/drm_dp_aux_dev.c
@@ -355,8 +355,7 @@ int drm_dp_aux_dev_init(void)
 
        drm_dp_aux_dev_class = class_create(THIS_MODULE, "drm_dp_aux_dev");
        if (IS_ERR(drm_dp_aux_dev_class)) {
-               res = PTR_ERR(drm_dp_aux_dev_class);
-               goto out;
+               return PTR_ERR(drm_dp_aux_dev_class);
        }
        drm_dp_aux_dev_class->dev_groups = drm_dp_aux_groups;