cyclades: switch to tty_port_hangup

Do not duplicate common tty_port_hangup code. Use it instead.

Also do not unset ASYNC_NORMAL_ACTIVE and wake up from the
tty_hangup() caller. It makes no sense since we don't check that
flag in sleepers. tty_port_hangup() performed later will do the
right job.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 7a7092ae5d39c004123b4a4ca8719b8495a4dfa3..226175d605c3976e7b37f627b92b9f645a059cfa 100644 (file)
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -1290,11 +1290,10 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
        }
 
        if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) {
-               if (!(mdm_status & CyDCD)) {
+               if (mdm_status & CyDCD)
+                       wake_up_interruptible(&info->port.open_wait);
+               else
                        tty_hangup(tty);
-                       info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
-               }
-               wake_up_interruptible(&info->port.open_wait);
        }
        if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) {
                if (tty->hw_stopped) {
@@ -1655,13 +1654,10 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
                        if (info->port.flags & ASYNC_CHECK_CD) {
                                u32 dcd = fw_ver > 241 ? param :
                                        readl(&info->u.cyz.ch_ctrl->rs_status);
-                               if (dcd & C_RS_DCD) {
+                               if (dcd & C_RS_DCD)
                                        wake_up_interruptible(&info->port.open_wait);
-                               } else {
+                               else
                                        tty_hangup(tty);
-                                       wake_up_interruptible(&info->port.open_wait);
-                                       info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
-                               }
                        }
                        break;
                case C_CM_MCTS:
@@ -4009,14 +4005,7 @@ static void cy_hangup(struct tty_struct *tty)
 
        cy_flush_buffer(tty);
        cy_shutdown(info, tty);
-       info->port.count = 0;
-#ifdef CY_DEBUG_COUNT
-       printk(KERN_DEBUG "cyc:cy_hangup (%d): setting count to 0\n",
-               current->pid);
-#endif
-       tty_port_tty_set(&info->port, NULL);
-       info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
-       wake_up_interruptible(&info->port.open_wait);
+       tty_port_hangup(&info->port);
 }                              /* cy_hangup */
 
 static int cyy_carrier_raised(struct tty_port *port)