1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/mm/vm.c b/drivers/gpu/nvgpu/common/mm/vm.c
index 4e221500..dc928e18 100644
--- a/drivers/gpu/nvgpu/common/mm/vm.c
+++ b/drivers/gpu/nvgpu/common/mm/vm.c
@@ -755,6 +755,11 @@ int nvgpu_vm_get_buffers(struct vm_gk20a *vm,
 
         nvgpu_mutex_acquire(&vm->update_gmmu_lock);
 
+        if (vm->num_user_mapped_buffers == 0) {
+                nvgpu_mutex_release(&vm->update_gmmu_lock);
+                return 0;
+        }
+
         buffer_list = nvgpu_big_zalloc(vm->mm->g, sizeof(*buffer_list) *
                                        vm->num_user_mapped_buffers);
         if (buffer_list == NULL) {