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drm: simplify drm_sysfs_destroy() via IS_ERR_OR_NULL()

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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>
This commit is contained in:
David Herrmann 2015-09-09 14:21:29 +02:00 committed by Daniel Vetter
parent 3a818d350f
commit 26b91ae473
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/drm_sysfs.c
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@ -156,7 +156,7 @@ struct class *drm_sysfs_create(struct module *owner, char *name)
*/
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);