summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/msm/msm_debugfs.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/msm/msm_debugfs.c')
-rw-r--r--drivers/gpu/drm/msm/msm_debugfs.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c
index ee2e270f464c..64afbed89821 100644
--- a/drivers/gpu/drm/msm/msm_debugfs.c
+++ b/drivers/gpu/drm/msm/msm_debugfs.c
@@ -112,6 +112,11 @@ static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
{
struct msm_drm_private *priv = dev->dev_private;
struct msm_gpu *gpu = priv->gpu;
+ int ret;
+
+ ret = mutex_lock_interruptible(&priv->mm_lock);
+ if (ret)
+ return ret;
if (gpu) {
seq_printf(m, "Active Objects (%s):\n", gpu->name);
@@ -121,6 +126,8 @@ static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
seq_printf(m, "Inactive Objects:\n");
msm_gem_describe_objects(&priv->inactive_list, m);
+ mutex_unlock(&priv->mm_lock);
+
return 0;
}