diff options
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_bo.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c index 1f93bc5a3d02..cb2b62a41972 100644 --- a/drivers/gpu/drm/vc4/vc4_bo.c +++ b/drivers/gpu/drm/vc4/vc4_bo.c @@ -738,12 +738,15 @@ static int vc4_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct return -EINVAL; } + mutex_lock(&bo->madv_lock); if (bo->madv != VC4_MADV_WILLNEED) { DRM_DEBUG("mmapping of %s BO not allowed\n", bo->madv == VC4_MADV_DONTNEED ? "purgeable" : "purged"); + mutex_unlock(&bo->madv_lock); return -EINVAL; } + mutex_unlock(&bo->madv_lock); return drm_gem_dma_mmap(&bo->base, vma); } |