drm/i915: check for -EINVAL from vm_insert_pfn

upstream commit: 959b887cf42fd63cf10e28a7f26126f78aa1c0b0

Indicates something is wrong with the mapping; and apparently triggers
in current kernels.

Signed-off-by: Jesse Barnes <jbarnes@virtuosugeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 37427e4016cbe5f93b487107cc4284379085e219..fb6390acef7e37c05d2075e6d572f8c5a51d10b0 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -603,6 +603,7 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
        case -EAGAIN:
                return VM_FAULT_OOM;
        case -EFAULT:
+       case -EINVAL:
                return VM_FAULT_SIGBUS;
        default:
                return VM_FAULT_NOPAGE;