Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index b744dad5c237..2ec7d48fc4a8 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -37,7 +37,6 @@
 #include "drmP.h"
 #include <linux/poll.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 
 /* from BKL pushdown: note that nothing else serializes idr_find() */
 DEFINE_MUTEX(drm_global_mutex);
@@ -237,6 +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);