drm: WARN when trying add enum values to non-enum/bitmask properties

Trying to add enum values to non-enum/bitmask properties is a
programmer mistake. WARN to make sure the developers notice
their mistake.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-2-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c
index d77b0c4..e676b1e 100644 (file)
--- a/drivers/gpu/drm/drm_property.c
+++ b/drivers/gpu/drm/drm_property.c
@@ -378,8 +378,8 @@ int drm_property_add_enum(struct drm_property *property, int index,
        if (WARN_ON(strlen(name) >= DRM_PROP_NAME_LEN))
                return -EINVAL;
 
-       if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) ||
-                       drm_property_type_is(property, DRM_MODE_PROP_BITMASK)))
+       if (WARN_ON(!drm_property_type_is(property, DRM_MODE_PROP_ENUM) &&
+                   !drm_property_type_is(property, DRM_MODE_PROP_BITMASK)))
                return -EINVAL;
 
        /*