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path: root/drivers/gpu/drm/i915/i915_gem_debugfs.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_debugfs.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_debugfs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_debugfs.c b/drivers/gpu/drm/i915/i915_gem_debugfs.c
index 455ec970b385..a1ac0c5e7307 100644
--- a/drivers/gpu/drm/i915/i915_gem_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_gem_debugfs.c
@@ -69,10 +69,13 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj_priv;
+ spinlock_t *lock = NULL;
switch (list) {
case ACTIVE_LIST:
seq_printf(m, "Active:\n");
+ lock = &dev_priv->mm.active_list_lock;
+ spin_lock(lock);
head = &dev_priv->mm.active_list;
break;
case INACTIVE_LIST:
@@ -104,6 +107,9 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
seq_printf(m, " (fence: %d\n", obj_priv->fence_reg);
seq_printf(m, "\n");
}
+
+ if (lock)
+ spin_unlock(lock);
return 0;
}