Author: ngie
Date: Mon Jul 11 17:01:07 2016
New Revision: 302577
URL: https://svnweb.freebsd.org/changeset/base/302577

Log:
  Add missing default case to capable(..) function definition
  
  By definition (enum __drm_capabilities), cases other than CAP_SYS_ADMIN
  aren't possible. Add in a KASSERT safety belt and return false in
  !INVARIANTS case if an invalid value is passed in, as it would be a
  programmer error.
  
  This fixes a -Wreturn-type error with gcc 5.3.0.
  
  Differential Revision:        https://reviews.freebsd.org/D7188
  MFC after:    1 week
  Reported by:  devel/amd64-gcc (5.3.0)
  Reviewed by:  dumbbell
  Sponsored by: EMC / Isilon Storage Division

Modified:
  head/sys/dev/drm2/drm_os_freebsd.h

Modified: head/sys/dev/drm2/drm_os_freebsd.h
==============================================================================
--- head/sys/dev/drm2/drm_os_freebsd.h  Mon Jul 11 16:56:51 2016        
(r302576)
+++ head/sys/dev/drm2/drm_os_freebsd.h  Mon Jul 11 17:01:07 2016        
(r302577)
@@ -438,6 +438,10 @@ capable(enum __drm_capabilities cap)
        switch (cap) {
        case CAP_SYS_ADMIN:
                return DRM_SUSER(curthread);
+       default:
+               KASSERT(false,
+                   ("%s: unhandled capability: %0x", __func__, cap));
+               return (false);
        }
 }
 
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