drm/i915: Fix read outside array bounds in restoring the SWF10 range.

dev_priv->saveSWF1 is a 16 element array, but this reads up to index 22,
and restored values from the wrong registers.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 9e1d16e..1d04e19 100644 (file)
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -598,7 +598,7 @@ int i915_restore_state(struct drm_device *dev)
 
        for (i = 0; i < 16; i++) {
                I915_WRITE(SWF00 + (i << 2), dev_priv->saveSWF0[i]);
-               I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i+7]);
+               I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i]);
        }
        for (i = 0; i < 3; i++)
                I915_WRITE(SWF30 + (i << 2), dev_priv->saveSWF2[i]);