1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index a39794bac04b..2ec7d48fc4a8 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -236,6 +236,8 @@ static int drm_open_helper(struct inode *inode, struct file *filp,
                 return -EBUSY;  /* No exclusive opens */
         if (!drm_cpu_valid())
                 return -EINVAL;
+        if (dev->switch_power_state != DRM_SWITCH_POWER_ON)
+                return -EINVAL;
 
         DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor_id);