drm: Fix error handling in drm_master_create
We need to check whether drm_ht_create succeed and clean up
if not.
Spotted by coverity.
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 4c24c3a..bfa6cb9 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -128,7 +128,10 @@
kref_init(&master->refcount);
spin_lock_init(&master->lock.spinlock);
init_waitqueue_head(&master->lock.lock_queue);
- drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
+ if (drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER)) {
+ kfree(master);
+ return NULL;
+ }
INIT_LIST_HEAD(&master->magicfree);
master->minor = minor;