1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 6263b0147598..7348a3dab250 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -133,6 +133,9 @@ int drm_open(struct inode *inode, struct file *filp)
         if (!(dev = minor->dev))
                 return -ENODEV;
 
+        if (drm_device_is_unplugged(dev))
+                return -ENODEV;
+
         retcode = drm_open_helper(inode, filp, dev);
         if (!retcode) {
                 atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
@@ -181,6 +184,9 @@ int drm_stub_open(struct inode *inode, struct file *filp)
         if (!(dev = minor->dev))
                 goto out;
 
+        if (drm_device_is_unplugged(dev))
+                goto out;
+
         old_fops = filp->f_op;
         filp->f_op = fops_get(dev->driver->fops);
         if (filp->f_op == NULL) {
@@ -579,6 +585,8 @@ int drm_release(struct inode *inode, struct file *filp)
                         retcode = -EBUSY;
                 } else
                         retcode = drm_lastclose(dev);
+                if (drm_device_is_unplugged(dev))
+                        drm_put_dev(dev);
         }
         mutex_unlock(&drm_global_mutex);