diff options
| -rw-r--r-- | drivers/video/pxafb.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 1e1c4ec0d3b9..ab689597f259 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -794,11 +794,15 @@ static int pxafb_smart_thread(void *arg) if (try_to_freeze()) continue; + mutex_lock(&fbi->ctrlr_lock); + if (fbi->state == C_ENABLE) { inf->smart_update(&fbi->fb); complete(&fbi->refresh_done); } + mutex_unlock(&fbi->ctrlr_lock); + set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(30 * HZ / 1000); } |