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drm: Fix error handling in drm_master_create

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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>
This commit is contained in:
Daniel Vetter 2014-04-05 11:12:04 +02:00
parent 8268bd48af
commit 10e6856983
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/drm_stub.c
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@ -128,7 +128,10 @@ struct drm_master *drm_master_create(struct drm_minor *minor)
kref_init(&master->refcount); kref_init(&master->refcount);
spin_lock_init(&master->lock.spinlock); spin_lock_init(&master->lock.spinlock);
init_waitqueue_head(&master->lock.lock_queue); 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); INIT_LIST_HEAD(&master->magicfree);
master->minor = minor; master->minor = minor;