[PATCH] net/farsync: add set_current_state() before schedule_timeout()

Insert set_current_state() before schedule_timeout() so the
function delays as expected. Without the addition, schedule_timeout()
will return immediately.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Maximilian Attems <janitor@sternwelten.at>
Signed-off-by: Domen Puncer <domen@coderock.org>

drivers/net/wan/farsync.c

@@ -981,6 +981,7 @@ fst_issue_cmd(struct fst_port_info *port, unsigned short cmd)
 	/* Wait for any previous command to complete */
 	while (mbval > NAK) {
 		spin_unlock_irqrestore(&card->card_lock, flags);
+		set_current_state(TASK_UNINTERRUPTIBLE);
 		schedule_timeout(1);
 		spin_lock_irqsave(&card->card_lock, flags);