[PATCH] um: fix-up schedule_timeout() usage

Use schedule_timeout_interruptible() instead of
set_current_state()/schedule_timeout() to reduce kernel size.
Signed-off-by: NNishanth Aravamudan <nacc@us.ibm.com>
Acked-by: NJeff Dike <jdike@addtoit.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

arch/um/drivers/random.c

@@ -58,10 +58,8 @@ static ssize_t rng_dev_read (struct file *filp, char __user *buf, size_t size,
                         if (filp->f_flags & O_NONBLOCK)
                                 return ret ? : -EAGAIN;
 
-                        if(need_resched()){
-                                current->state = TASK_INTERRUPTIBLE;
-                                schedule_timeout(1);
-                        }
+                        if(need_resched())
+                                schedule_timeout_interruptible(1);
                 }
                 else return n;
 		if (signal_pending (current))