serial: move delta_msr_wait into the tty_port

This is used by various drivers not just serial and can be extracted
as commonality

Signed-off-by: Alan Cox <alan@linux.intel.com>

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 70bd61b2a7d7..df5038bbcbc2 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -729,7 +729,7 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
                 if (mdm_change & CyRI)
                         info->icount.rng++;
 
-                wake_up_interruptible(&info->delta_msr_wait);
+                wake_up_interruptible(&info->port.delta_msr_wait);
         }
 
         if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) {
@@ -1197,7 +1197,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
                         break;
                 }
                 if (delta_count)
-                        wake_up_interruptible(&info->delta_msr_wait);
+                        wake_up_interruptible(&info->port.delta_msr_wait);
                 if (special_count)
                         tty_schedule_flip(tty);
                 tty_kref_put(tty);
@@ -1464,7 +1464,7 @@ static void cy_shutdown(struct cyclades_port *info, struct tty_struct *tty)
                 spin_lock_irqsave(&card->card_lock, flags);
 
                 /* Clear delta_msr_wait queue to avoid mem leaks. */
-                wake_up_interruptible(&info->delta_msr_wait);
+                wake_up_interruptible(&info->port.delta_msr_wait);
 
                 if (info->port.xmit_buf) {
                         unsigned char *temp;
@@ -2788,7 +2788,7 @@ cy_ioctl(struct tty_struct *tty, struct file *file,
                 /* note the counters on entry */
                 cnow = info->icount;
                 spin_unlock_irqrestore(&info->card->card_lock, flags);
-                ret_val = wait_event_interruptible(info->delta_msr_wait,
+                ret_val = wait_event_interruptible(info->port.delta_msr_wait,
                                 cy_cflags_changed(info, arg, &cnow));
                 break;
 
@@ -3153,7 +3153,6 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo)
                 info->port.close_delay = 5 * HZ / 10;
                 info->port.flags = STD_COM_FLAGS;
                 init_completion(&info->shutdown_wait);
-                init_waitqueue_head(&info->delta_msr_wait);
 
                 if (cy_is_Z(cinfo)) {
                         struct FIRM_ID *firm_id = cinfo->base_addr + ID_ADDRESS;