1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index d5b349d279f5..90288ec7c284 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -481,9 +481,9 @@ long drm_ioctl(struct file *filp,
                 if (ioctl->flags & DRM_UNLOCKED)
                         retcode = func(dev, kdata, file_priv);
                 else {
-                        lock_kernel();
+                        mutex_lock(&drm_global_mutex);
                         retcode = func(dev, kdata, file_priv);
-                        unlock_kernel();
+                        mutex_unlock(&drm_global_mutex);
                 }
 
                 if (cmd & IOC_OUT) {