On Tue, 2022-07-19 at 12:47 +0300, Dan Carpenter wrote: > The vmw_user_bo_noref_lookup() function cannot return NULL. If it > could, then this function would return PTR_ERR(NULL) which is success. > Returning success without initializing "*vmw_bo_p = vmw_bo;" would > lead to an uninitialized variable bug in the caller. Smatch complains > about this: > > drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c:1177 vmw_translate_mob_ptr() warn: passing zero to 'PTR_ERR' > drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c:1314 vmw_cmd_dx_bind_query() error: uninitialized symbol 'vmw_bo'. Thanks, Dan. I'll push it through the drm-misc tree. z
