diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c b/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c
index ad92c60290f1492854ca2d38f4dee355db4d5d43..f08d0179b3df2e5485a77d4abcf67f1dfd8e967c 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c
@@ -272,7 +272,7 @@ static int igt_gem_coherency(void *arg)
 	struct drm_i915_gem_object *obj;
 	unsigned long count, n;
 	u32 *offsets, *values;
-	int err;
+	int err = 0;
 
 	/* We repeatedly write, overwrite and read from a sequence of
 	 * cachelines in order to try and detect incoherency (unflushed writes