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

[Danilo Krummrich]

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 <l...@intel.com>
Signed-off-by: Danilo Krummrich <d...@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_uvmm.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

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;
-- 
2.41.0