1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
index 86cc793cdf79..e109b49cd25d 100644
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -481,12 +481,9 @@ int drm_gem_cma_prime_mmap(struct drm_gem_object *obj,
                            struct vm_area_struct *vma)
 {
         struct drm_gem_cma_object *cma_obj;
-        struct drm_device *dev = obj->dev;
         int ret;
 
-        mutex_lock(&dev->struct_mutex);
         ret = drm_gem_mmap_obj(obj, obj->size, vma);
-        mutex_unlock(&dev->struct_mutex);
         if (ret < 0)
                 return ret;