drm: simplify drm_sysfs_destroy() via IS_ERR_OR_NULL()
Simplify `foo == NULL || IS_ERR(foo)` via IS_ERR_OR_NULL(). This is
pretty commonly used all over the kernel, especially for debugfs/sysfs
cleanup paths.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 0f6cd33..3f66cb0 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -156,7 +156,7 @@
*/
void drm_sysfs_destroy(void)
{
- if ((drm_class == NULL) || (IS_ERR(drm_class)))
+ if (IS_ERR_OR_NULL(drm_class))
return;
class_remove_file(drm_class, &class_attr_version.attr);
class_destroy(drm_class);