[Intel-gfx] [PATCH] drm/i915: Silence compiler for GTT selftests

[Chris Wilson]

gcc-4.7 spotted that

In file included from drivers/gpu/drm/i915/i915_gem_gtt.c:3791:0:
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c: In function ‘pot_hole’:
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c:594:6: error: ‘err’ may be used uninitialized in this function [-Werror=maybe-uninitialized]

So set it to 0 should we ever skip over a hole smaller than a few pages.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld at intel.com>
---
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 3d54e7d81b9d..e23753181720 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -591,7 +591,7 @@ static int pot_hole(struct drm_i915_private *i915,
 	struct i915_vma *vma;
 	unsigned long flags;
 	unsigned int pot;
-	int err;
+	int err = 0;
 
 	flags = PIN_OFFSET_FIXED | PIN_USER;
 	if (i915_is_ggtt(vm))
-- 
2.11.0