diff mbox series

[drm-misc-next,4/5] drm/nouveau: uvmm: remove incorrect calls to mas_unlock()

Message ID 20230807163238.2091-5-dakr@redhat.com
State New
Headers
Series Nouveau VM_BIND uAPI Fixes |

Commit Message

Danilo Krummrich Aug. 7, 2023, 4:32 p.m. UTC 
  Remove incorrect calls to mas_unlock() in the unwind path of
__nouveau_uvma_region_insert(). The region maple tree uses an external
lock instead, namely the global uvmm lock.

Fixes: b88baab82871 ("drm/nouveau: implement new VM_BIND uAPI")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_uvmm.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/nouveau/nouveau_uvmm.c b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
index 2acbac73e57a..91b964ef98b1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_uvmm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_uvmm.c
@@ -279,15 +279,11 @@  __nouveau_uvma_region_insert(struct nouveau_uvmm *uvmm,
 	u64 last = addr + range - 1;
 	MA_STATE(mas, &uvmm->region_mt, addr, addr);
 
-	if (unlikely(mas_walk(&mas))) {
-		mas_unlock(&mas);
+	if (unlikely(mas_walk(&mas)))
 		return -EEXIST;
-	}
 
-	if (unlikely(mas.last < last)) {
-		mas_unlock(&mas);
+	if (unlikely(mas.last < last))
 		return -EEXIST;
-	}
 
 	mas.index = addr;
 	mas.last = last;