net/sir_dev: replace

@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/smp_lock.h>
+#include <linux/delay.h>
 
 #include <net/irda/irda.h>
 #include <net/irda/wrapper.h>

@@ -73,8 +74,7 @@ int sirdev_raw_write(struct sir_dev *dev
 	spin_lock_irqsave(&dev->tx_lock, flags);	/* serialize with other tx operations */
 	while (dev->tx_buff.len > 0) {			/* wait until tx idle */
 		spin_unlock_irqrestore(&dev->tx_lock, flags);
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		schedule_timeout(msecs_to_jiffies(10));
+		msleep(10);
 		spin_lock_irqsave(&dev->tx_lock, flags);
 	}