drivers/char: use __set_current_state()

use __set_current_state(TASK_*) instead of current->state = TASK_*,

Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index c7dac9b..20380a2 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -388,7 +388,7 @@
 	if (!retval)
 		retval = count;
  out:
-	current->state = TASK_RUNNING;
+	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(&rtc_wait, &wait);
 
 	return retval;