Signed-off-by: Wu Fengguang <fengguang...@intel.com>
---
drivers/gpu/drm/i915/i915_gem.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- mm.orig/drivers/gpu/drm/i915/i915_gem.c
+++ mm/drivers/gpu/drm/i915/i915_gem.c
@@ -4087,8 +4087,10 @@ i915_gem_entervt_ioctl(struct drm_device
dev_priv->mm.suspended = 0;
ret = i915_gem_init_ringbuffer(dev);
- if (ret != 0)
+ if (ret != 0) {
+ mutex_unlock(&dev->struct_mutex);
return ret;
+ }
spin_lock(&dev_priv->mm.active_list_lock);
BUG_ON(!list_empty(&dev_priv->mm.active_list));
------------------------------------------------------------------------------
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