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From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Tue, 6 Mar 2018 18:48:45 +0200
Subject: drm: WARN when trying add enum values to non-enum/bitmask properties
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Git-commit: 1371f2604dad70942041a7f1ed1a2029c67606b1
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/drm_property.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- 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_pro
 	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;
 
 	/*