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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_surface.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index 64b50409fa07..7d620e82e000 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -657,7 +657,8 @@ static void vmw_user_surface_base_release(struct ttm_base_object **p_base)
struct vmw_resource *res = &user_srf->srf.res;
*p_base = NULL;
- ttm_base_object_unref(&user_srf->backup_base);
+ if (user_srf->backup_base)
+ ttm_base_object_unref(&user_srf->backup_base);
vmw_resource_unreference(&res);
}
@@ -1290,6 +1291,8 @@ int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
uint32_t size;
uint32_t backup_handle;
+ if (req->multisample_count != 0)
+ return -EINVAL;
if (unlikely(vmw_user_surface_size == 0))
vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +