drm/vmwgfx: Fix uninitialized return in vmw_kms_helper_dirty()

Function vmw_kms_helper_dirty() uses the uninitialized variable ret as
return value. Make the result deterministic and directly return as the
variable is unused anyway. Detected by Coverity CID 1324255.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 61fb7f3de3119ae3f94ad6dd9fef57f0c9c780c4..15a6c01cd016b28dfe9cfec9d1d5515f1166f835 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1685,7 +1685,6 @@ int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
        struct drm_crtc *crtc;
        u32 num_units = 0;
        u32 i, k;
-       int ret;
 
        dirty->dev_priv = dev_priv;
 
@@ -1711,7 +1710,7 @@ int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
                        if (!dirty->cmd) {
                                DRM_ERROR("Couldn't reserve fifo space "
                                          "for dirty blits.\n");
-                               return ret;
+                               return -ENOMEM;
                        }
                        memset(dirty->cmd, 0, dirty->fifo_reserve_size);
                }