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-rw-r--r--drivers/usb/serial/keyspan.c43
-rw-r--r--drivers/usb/serial/option.c9
-rw-r--r--drivers/usb/serial/sierra.c8
3 files changed, 14 insertions, 46 deletions
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 1fd1935c8316..b011478d2e5f 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -378,7 +378,6 @@ static void usa26_instat_callback(struct urb *urb)
struct usb_serial *serial;
struct usb_serial_port *port;
struct keyspan_port_private *p_priv;
- struct tty_struct *tty;
int old_dcd_state, err;
int status = urb->status;
@@ -421,12 +420,8 @@ static void usa26_instat_callback(struct urb *urb)
p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
p_priv->ri_state = ((msg->ri) ? 1 : 0);
- if (old_dcd_state != p_priv->dcd_state) {
- tty = tty_port_tty_get(&port->port);
- if (tty && !C_CLOCAL(tty))
- tty_hangup(tty);
- tty_kref_put(tty);
- }
+ if (old_dcd_state != p_priv->dcd_state)
+ tty_port_tty_hangup(&port->port, true);
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
@@ -510,7 +505,6 @@ static void usa28_instat_callback(struct urb *urb)
struct usb_serial *serial;
struct usb_serial_port *port;
struct keyspan_port_private *p_priv;
- struct tty_struct *tty;
int old_dcd_state;
int status = urb->status;
@@ -551,12 +545,8 @@ static void usa28_instat_callback(struct urb *urb)
p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
p_priv->ri_state = ((msg->ri) ? 1 : 0);
- if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
- tty = tty_port_tty_get(&port->port);
- if (tty && !C_CLOCAL(tty))
- tty_hangup(tty);
- tty_kref_put(tty);
- }
+ if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
+ tty_port_tty_hangup(&port->port, true);
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
@@ -642,12 +632,8 @@ static void usa49_instat_callback(struct urb *urb)
p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
p_priv->ri_state = ((msg->ri) ? 1 : 0);
- if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
- struct tty_struct *tty = tty_port_tty_get(&port->port);
- if (tty && !C_CLOCAL(tty))
- tty_hangup(tty);
- tty_kref_put(tty);
- }
+ if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
+ tty_port_tty_hangup(&port->port, true);
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
@@ -851,7 +837,6 @@ static void usa90_instat_callback(struct urb *urb)
struct usb_serial *serial;
struct usb_serial_port *port;
struct keyspan_port_private *p_priv;
- struct tty_struct *tty;
int old_dcd_state, err;
int status = urb->status;
@@ -880,12 +865,8 @@ static void usa90_instat_callback(struct urb *urb)
p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
p_priv->ri_state = ((msg->ri) ? 1 : 0);
- if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
- tty = tty_port_tty_get(&port->port);
- if (tty && !C_CLOCAL(tty))
- tty_hangup(tty);
- tty_kref_put(tty);
- }
+ if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
+ tty_port_tty_hangup(&port->port, true);
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
@@ -953,12 +934,8 @@ static void usa67_instat_callback(struct urb *urb)
p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
- if (old_dcd_state != p_priv->dcd_state && old_dcd_state) {
- struct tty_struct *tty = tty_port_tty_get(&port->port);
- if (tty && !C_CLOCAL(tty))
- tty_hangup(tty);
- tty_kref_put(tty);
- }
+ if (old_dcd_state != p_priv->dcd_state && old_dcd_state)
+ tty_port_tty_hangup(&port->port, true);
/* Resubmit urb so we continue receiving */
err = usb_submit_urb(urb, GFP_ATOMIC);
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index f7d339d8187b..602d1f389a3b 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1532,13 +1532,8 @@ static void option_instat_callback(struct urb *urb)
portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
portdata->ri_state = ((signals & 0x08) ? 1 : 0);
- if (old_dcd_state && !portdata->dcd_state) {
- struct tty_struct *tty =
- tty_port_tty_get(&port->port);
- if (tty && !C_CLOCAL(tty))
- tty_hangup(tty);
- tty_kref_put(tty);
- }
+ if (old_dcd_state && !portdata->dcd_state)
+ tty_port_tty_hangup(&port->port, true);
} else {
dev_dbg(dev, "%s: type %x req %x\n", __func__,
req_pkt->bRequestType, req_pkt->bRequest);
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index c13f6e747748..d66148a17fe3 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -628,7 +628,6 @@ static void sierra_instat_callback(struct urb *urb)
unsigned char signals = *((unsigned char *)
urb->transfer_buffer +
sizeof(struct usb_ctrlrequest));
- struct tty_struct *tty;
dev_dbg(&port->dev, "%s: signal x%x\n", __func__,
signals);
@@ -639,11 +638,8 @@ static void sierra_instat_callback(struct urb *urb)
portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
portdata->ri_state = ((signals & 0x08) ? 1 : 0);
- tty = tty_port_tty_get(&port->port);
- if (tty && !C_CLOCAL(tty) &&
- old_dcd_state && !portdata->dcd_state)
- tty_hangup(tty);
- tty_kref_put(tty);
+ if (old_dcd_state && !portdata->dcd_state)
+ tty_port_tty_hangup(&port->port, true);
} else {
dev_dbg(&port->dev, "%s: type %x req %x\n",
__func__, req_pkt->bRequestType,
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