drm/i915: print warning if vmi915_gem_fault error is not handled

Falling into default case in vmi915_gem_fault is a bug. Be more
verbose about it.

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 5fa3419461c5ddb46fa2b70b797b8c4ad3567e59..b55eee38af7687a0182cb9a887c495aa94119bc5 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1409,6 +1409,7 @@ out:
        case -ENOMEM:
                return VM_FAULT_OOM;
        default:
+               WARN_ON_ONCE(ret);
                return VM_FAULT_SIGBUS;
        }
 }