[Intel-gfx] [PATCH 3/6] drm: WARN when trying to add enum value > 63 to a bitmask property
Ville Syrjala
ville.syrjala at linux.intel.com
Tue Mar 6 16:48:46 UTC 2018
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
Enum values >63 with a bitmask property is a programmer error. WARN
when someone is attempting this.
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/drm_property.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c
index e676b1ecc705..019d1abb94ca 100644
--- a/drivers/gpu/drm/drm_property.c
+++ b/drivers/gpu/drm/drm_property.c
@@ -386,8 +386,8 @@ int drm_property_add_enum(struct drm_property *property, int index,
* Bitmask enum properties have the additional constraint of values
* from 0 to 63
*/
- if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) &&
- (value > 63))
+ if (WARN_ON(drm_property_type_is(property, DRM_MODE_PROP_BITMASK) &&
+ value > 63))
return -EINVAL;
list_for_each_entry(prop_enum, &property->enum_list, head) {
--
2.16.1
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