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path: root/drivers/usb/serial/digi_acceleport.c
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Diffstat (limited to 'drivers/usb/serial/digi_acceleport.c')
-rw-r--r--drivers/usb/serial/digi_acceleport.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index b0526786fb02..e7f244cf2c07 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -984,6 +984,7 @@ static void digi_write_bulk_callback(struct urb *urb)
struct usb_serial *serial;
struct digi_port *priv;
struct digi_serial *serial_priv;
+ unsigned long flags;
int ret = 0;
int status = urb->status;
@@ -1004,15 +1005,15 @@ static void digi_write_bulk_callback(struct urb *urb)
/* handle oob callback */
if (priv->dp_port_num == serial_priv->ds_oob_port_num) {
dev_dbg(&port->dev, "digi_write_bulk_callback: oob callback\n");
- spin_lock(&priv->dp_port_lock);
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
priv->dp_write_urb_in_use = 0;
wake_up_interruptible(&port->write_wait);
- spin_unlock(&priv->dp_port_lock);
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
return;
}
/* try to send any buffered data on this port */
- spin_lock(&priv->dp_port_lock);
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
priv->dp_write_urb_in_use = 0;
if (priv->dp_out_buf_len > 0) {
*((unsigned char *)(port->write_urb->transfer_buffer))
@@ -1035,7 +1036,7 @@ static void digi_write_bulk_callback(struct urb *urb)
/* lost the race in write_chan(). */
schedule_work(&priv->dp_wakeup_work);
- spin_unlock(&priv->dp_port_lock);
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
if (ret && ret != -EPERM)
dev_err_console(port,
"%s: usb_submit_urb failed, ret=%d, port=%d\n",
@@ -1381,11 +1382,12 @@ static int digi_read_inb_callback(struct urb *urb)
struct usb_serial_port *port = urb->context;
struct digi_port *priv = usb_get_serial_port_data(port);
unsigned char *buf = urb->transfer_buffer;
+ unsigned long flags;
int opcode;
int len;
int port_status;
unsigned char *data;
- int flag, throttled;
+ int tty_flag, throttled;
/* short/multiple packet check */
if (urb->actual_length < 2) {
@@ -1407,7 +1409,7 @@ static int digi_read_inb_callback(struct urb *urb)
return -1;
}
- spin_lock(&priv->dp_port_lock);
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
/* check for throttle; if set, do not resubmit read urb */
/* indicate the read chain needs to be restarted on unthrottle */
@@ -1421,7 +1423,7 @@ static int digi_read_inb_callback(struct urb *urb)
data = &buf[3];
/* get flag from port_status */
- flag = 0;
+ tty_flag = 0;
/* overrun is special, not associated with a char */
if (port_status & DIGI_OVERRUN_ERROR)
@@ -1430,21 +1432,21 @@ static int digi_read_inb_callback(struct urb *urb)
/* break takes precedence over parity, */
/* which takes precedence over framing errors */
if (port_status & DIGI_BREAK_ERROR)
- flag = TTY_BREAK;
+ tty_flag = TTY_BREAK;
else if (port_status & DIGI_PARITY_ERROR)
- flag = TTY_PARITY;
+ tty_flag = TTY_PARITY;
else if (port_status & DIGI_FRAMING_ERROR)
- flag = TTY_FRAME;
+ tty_flag = TTY_FRAME;
/* data length is len-1 (one byte of len is port_status) */
--len;
if (len > 0) {
tty_insert_flip_string_fixed_flag(&port->port, data,
- flag, len);
+ tty_flag, len);
tty_flip_buffer_push(&port->port);
}
}
- spin_unlock(&priv->dp_port_lock);
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
if (opcode == DIGI_CMD_RECEIVE_DISABLE)
dev_dbg(&port->dev, "%s: got RECEIVE_DISABLE\n", __func__);
@@ -1474,6 +1476,7 @@ static int digi_read_oob_callback(struct urb *urb)
struct digi_port *priv = usb_get_serial_port_data(port);
unsigned char *buf = urb->transfer_buffer;
int opcode, line, status, val;
+ unsigned long flags;
int i;
unsigned int rts;
@@ -1506,7 +1509,7 @@ static int digi_read_oob_callback(struct urb *urb)
rts = C_CRTSCTS(tty);
if (tty && opcode == DIGI_CMD_READ_INPUT_SIGNALS) {
- spin_lock(&priv->dp_port_lock);
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
/* convert from digi flags to termiox flags */
if (val & DIGI_READ_INPUT_SIGNALS_CTS) {
priv->dp_modem_signals |= TIOCM_CTS;
@@ -1530,12 +1533,12 @@ static int digi_read_oob_callback(struct urb *urb)
else
priv->dp_modem_signals &= ~TIOCM_CD;
- spin_unlock(&priv->dp_port_lock);
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
} else if (opcode == DIGI_CMD_TRANSMIT_IDLE) {
- spin_lock(&priv->dp_port_lock);
+ spin_lock_irqsave(&priv->dp_port_lock, flags);
priv->dp_transmit_idle = 1;
wake_up_interruptible(&priv->dp_transmit_idle_wait);
- spin_unlock(&priv->dp_port_lock);
+ spin_unlock_irqrestore(&priv->dp_port_lock, flags);
} else if (opcode == DIGI_CMD_IFLUSH_FIFO) {
wake_up_interruptible(&priv->dp_flush_wait);
}