[PATCH] drm/i915:Fix array bounds warnings.

[majianpeng]

Signed-off-by: majianpeng <majianpeng at gmail.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index fdb7cce..8ad59dd 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -704,6 +704,7 @@ static void i915_ring_error_state(struct seq_file *m,
 				  struct drm_i915_error_state *error,
 				  unsigned ring)
 {
+	BUG_ON(ring >= I915_NUM_RINGS);
 	seq_printf(m, "%s command stream:\n", ring_str(ring));
 	seq_printf(m, "  HEAD: 0x%08x\n", error->head[ring]);
 	seq_printf(m, "  TAIL: 0x%08x\n", error->tail[ring]);
-- 
1.7.5.4

 				
--------------
majianpeng
2012-03-29