drm: Fix hashtab implementation leaking illegal error codes to user space.

reported by Dave Airlie

Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/char/drm/drm_hashtab.c b/drivers/char/drm/drm_hashtab.c
index 480611395481..a0b2d6802ae4 100644
--- a/drivers/char/drm/drm_hashtab.c
+++ b/drivers/char/drm/drm_hashtab.c
@@ -106,7 +106,7 @@ int drm_ht_insert_item(drm_open_hash_t *ht, drm_hash_item_t *item)
         hlist_for_each(list, h_list) {
                 entry = hlist_entry(list, drm_hash_item_t, head);
                 if (entry->key == key)
-                        return -1;
+                        return -EINVAL;
                 if (entry->key > key)
                         break;
                 parent = list;
@@ -154,7 +154,7 @@ int drm_ht_find_item(drm_open_hash_t *ht, unsigned long key,
 
         list = drm_ht_find_key(ht, key);
         if (!list)
-                return -1;
+                return -EINVAL;
 
         *item = hlist_entry(list, drm_hash_item_t, head);
         return 0;
@@ -170,7 +170,7 @@ int drm_ht_remove_key(drm_open_hash_t *ht, unsigned long key)
                 ht->fill--;
                 return 0;
         }
-        return -1;
+        return -EINVAL;
 }
 
 int drm_ht_remove_item(drm_open_hash_t *ht, drm_hash_item_t *item)