1 files changed, 35 insertions, 28 deletions

diff --git a/drivers/usb/serial/airprime.c b/drivers/usb/serial/airprime.c
index 725b6b94c274..0798c14ce787 100644
--- a/drivers/usb/serial/airprime.c
+++ b/drivers/usb/serial/airprime.c
@@ -68,8 +68,9 @@ static int airprime_send_setup(struct usb_serial_port *port)
                         val |= 0x02;
 
                 return usb_control_msg(serial->dev,
-                                usb_rcvctrlpipe(serial->dev, 0),
-                                0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
+                                        usb_rcvctrlpipe(serial->dev, 0),
+                                        0x22, 0x21, val, 0, NULL, 0,
+                                        USB_CTRL_SET_TIMEOUT);
         }
 
         return 0;
@@ -90,17 +91,19 @@ static void airprime_read_bulk_callback(struct urb *urb)
                     __func__, status);
                 return;
         }
-        usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
+        usb_serial_debug_data(debug, &port->dev, __func__,
+                                                urb->actual_length, data);
 
         tty = port->tty;
         if (tty && urb->actual_length) {
-                tty_insert_flip_string (tty, data, urb->actual_length);
-                tty_flip_buffer_push (tty);
+                tty_insert_flip_string(tty, data, urb->actual_length);
+                tty_flip_buffer_push(tty);
         }
 
-        result = usb_submit_urb (urb, GFP_ATOMIC);
+        result = usb_submit_urb(urb, GFP_ATOMIC);
         if (result)
-                dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n",
+                dev_err(&port->dev,
+                        "%s - failed resubmitting read urb, error %d\n",
                         __func__, result);
         return;
 }
@@ -115,7 +118,7 @@ static void airprime_write_bulk_callback(struct urb *urb)
         dbg("%s - port %d", __func__, port->number);
 
         /* free up the transfer buffer, as usb_free_urb() does not do this */
-        kfree (urb->transfer_buffer);
+        kfree(urb->transfer_buffer);
 
         if (status)
                 dbg("%s - nonzero write bulk status received: %d",
@@ -171,7 +174,7 @@ static int airprime_open(struct usb_serial_port *port, struct file *filp)
                 }
                 usb_fill_bulk_urb(urb, serial->dev,
                                   usb_rcvbulkpipe(serial->dev,
-                                                  port->bulk_out_endpointAddress),
+                                          port->bulk_out_endpointAddress),
                                   buffer, buffer_size,
                                   airprime_read_bulk_callback, port);
                 result = usb_submit_urb(urb, GFP_KERNEL);
@@ -183,7 +186,8 @@ static int airprime_open(struct usb_serial_port *port, struct file *filp)
                                 __func__, i, port->number, result);
                         goto errout;
                 }
-                /* remember this urb so we can kill it when the port is closed */
+                /* remember this urb so we can kill it when the
+                   port is closed */
                 priv->read_urbp[i] = urb;
         }
 
@@ -192,22 +196,22 @@ static int airprime_open(struct usb_serial_port *port, struct file *filp)
         goto out;
 
  errout:
-        /* some error happened, cancel any submitted urbs and clean up anything that
-           got allocated successfully */
+        /* some error happened, cancel any submitted urbs and clean up
+           anything that got allocated successfully */
 
         while (i-- != 0) {
                 urb = priv->read_urbp[i];
                 buffer = urb->transfer_buffer;
-                usb_kill_urb (urb);
-                usb_free_urb (urb);
-                kfree (buffer);
+                usb_kill_urb(urb);
+                usb_free_urb(urb);
+                kfree(buffer);
         }
 
  out:
         return result;
 }
 
-static void airprime_close(struct usb_serial_port *port, struct file * filp)
+static void airprime_close(struct usb_serial_port *port, struct file *filp)
 {
         struct airprime_private *priv = usb_get_serial_port_data(port);
         int i;
@@ -220,16 +224,16 @@ static void airprime_close(struct usb_serial_port *port, struct file * filp)
         mutex_lock(&port->serial->disc_mutex);
         if (!port->serial->disconnected)
                 airprime_send_setup(port);
-        mutex_lock(&port->serial->disc_mutex);
+        mutex_unlock(&port->serial->disc_mutex);
 
         for (i = 0; i < NUM_READ_URBS; ++i) {
-                usb_kill_urb (priv->read_urbp[i]);
-                kfree (priv->read_urbp[i]->transfer_buffer);
-                usb_free_urb (priv->read_urbp[i]);
+                usb_kill_urb(priv->read_urbp[i]);
+                kfree(priv->read_urbp[i]->transfer_buffer);
+                usb_free_urb(priv->read_urbp[i]);
         }
 
         /* free up private structure */
-        kfree (priv);
+        kfree(priv);
         usb_set_serial_port_data(port, NULL);
 }
 
@@ -259,10 +263,10 @@ static int airprime_write(struct usb_serial_port *port,
         urb = usb_alloc_urb(0, GFP_ATOMIC);
         if (!urb) {
                 dev_err(&port->dev, "no more free urbs\n");
-                kfree (buffer);
+                kfree(buffer);
                 return -ENOMEM;
         }
-        memcpy (buffer, buf, count);
+        memcpy(buffer, buf, count);
 
         usb_serial_debug_data(debug, &port->dev, __func__, count, buffer);
 
@@ -279,7 +283,7 @@ static int airprime_write(struct usb_serial_port *port,
                         "%s - usb_submit_urb(write bulk) failed with status = %d\n",
                         __func__, status);
                 count = status;
-                kfree (buffer);
+                kfree(buffer);
         } else {
                 spin_lock_irqsave(&priv->lock, flags);
                 ++priv->outstanding_urbs;
@@ -287,7 +291,7 @@ static int airprime_write(struct usb_serial_port *port,
         }
         /* we are done with this urb, so let the host driver
          * really free it when it is finished with it */
-        usb_free_urb (urb);
+        usb_free_urb(urb);
         return count;
 }
 
@@ -315,8 +319,10 @@ static int __init airprime_init(void)
 {
         int retval;
 
-        airprime_device.num_ports =
-                (endpoints > 0 && endpoints <= MAX_BULK_EPS) ? endpoints : NUM_BULK_EPS;
+        airprime_device.num_ports = endpoints;
+        if (endpoints < 0 || endpoints >= MAX_BULK_EPS)
+                airprime_device.num_ports = NUM_BULK_EPS;
+
         retval = usb_serial_register(&airprime_device);
         if (retval)
                 return retval;
@@ -341,6 +347,7 @@ MODULE_LICENSE("GPL");
 module_param(debug, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "Debug enabled");
 module_param(buffer_size, int, 0);
-MODULE_PARM_DESC(buffer_size, "Size of the transfer buffers in bytes (default 4096)");
+MODULE_PARM_DESC(buffer_size,
+                "Size of the transfer buffers in bytes (default 4096)");
 module_param(endpoints, int, 0);
 MODULE_PARM_DESC(endpoints, "Number of bulk EPs to configure (default 3)");