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authorPeter Hurley <peter@hurleysoftware.com>2016-04-10 03:53:23 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-04-30 19:26:55 +0300
commit2d68655d15bc99981394f7caa769a14b03cac131 (patch)
treea61f1f9ffe92c21ff69fdd3f09c8f921f0670fcf /drivers/isdn
parent807c8d81f4ec441241cafa3034c58df721fee869 (diff)
downloadlinux-2d68655d15bc99981394f7caa769a14b03cac131.tar.xz
tty: Replace ASYNC_CHECK_CD and update atomically
Replace ASYNC_CHECK_CD bit in the tty_port::flags field with TTY_PORT_CHECK_CD bit in the tty_port::iflags field. Introduce helpers tty_port_set_check_carrier() and tty_port_check_carrier() to abstract the atomic bit ops. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/isdn')
-rw-r--r--drivers/isdn/i4l/isdn_tty.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index d8468f3529a7..023a350a8cd8 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1043,11 +1043,7 @@ isdn_tty_change_speed(modem_info *info)
if (!(cflag & PARODD))
cval |= UART_LCR_EPAR;
- if (cflag & CLOCAL)
- port->flags &= ~ASYNC_CHECK_CD;
- else {
- port->flags |= ASYNC_CHECK_CD;
- }
+ tty_port_set_check_carrier(port, ~cflag & CLOCAL);
}
static int
@@ -2526,7 +2522,7 @@ isdn_tty_modem_result(int code, modem_info *info)
if (info->closing || (!info->port.tty))
return;
- if (info->port.flags & ASYNC_CHECK_CD)
+ if (tty_port_check_carrier(&info->port))
tty_hangup(info->port.tty);
}
}