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path: root/drivers/gpu/drm/drm_fops.c
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Diffstat (limited to 'drivers/gpu/drm/drm_fops.c')
-rw-r--r--drivers/gpu/drm/drm_fops.c8
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);