1 files changed, 30 insertions, 23 deletions

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 031d07b105af..1b7cac77159e 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -102,8 +102,12 @@
 
 #define MAX_RX_URBS                     2
 
-#define get_serial_by_tty(x)    \
-        (x ? (struct hso_serial *)x->driver_data : NULL)
+static inline struct hso_serial *get_serial_by_tty(struct tty_struct *tty)
+{
+        if (tty)
+                return tty->driver_data;
+        return NULL;
+}
 
 /*****************************************************************************/
 /* Debugging functions                                                       */
@@ -294,24 +298,25 @@ static int hso_get_activity(struct hso_device *hso_dev);
 
 /* #define DEBUG */
 
-#define dev2net(x) (x->port_data.dev_net)
-#define dev2ser(x) (x->port_data.dev_serial)
+static inline struct hso_net *dev2net(struct hso_device *hso_dev)
+{
+        return hso_dev->port_data.dev_net;
+}
+
+static inline struct hso_serial *dev2ser(struct hso_device *hso_dev)
+{
+        return hso_dev->port_data.dev_serial;
+}
 
 /* Debugging functions */
 #ifdef DEBUG
 static void dbg_dump(int line_count, const char *func_name, unsigned char *buf,
                      unsigned int len)
 {
-        u8 i = 0;
+        static char name[255];
 
-        printk(KERN_DEBUG "[%d:%s]: len %d", line_count, func_name, len);
-
-        for (i = 0; i < len; i++) {
-                if (!(i % 16))
-                        printk("\n    0x%03x:  ", i);
-                printk("%02x ", (unsigned char)buf[i]);
-        }
-        printk("\n");
+        sprintf(name, "hso[%d:%s]", line_count, func_name);
+        print_hex_dump_bytes(name, DUMP_PREFIX_NONE, buf, len);
 }
 
 #define DUMP(buf_, len_)        \
@@ -528,13 +533,12 @@ static struct hso_serial *get_serial_by_shared_int_and_type(
 
 static struct hso_serial *get_serial_by_index(unsigned index)
 {
-        struct hso_serial *serial;
+        struct hso_serial *serial = NULL;
         unsigned long flags;
 
-        if (!serial_table[index])
-                return NULL;
         spin_lock_irqsave(&serial_table_lock, flags);
-        serial = dev2ser(serial_table[index]);
+        if (serial_table[index])
+                serial = dev2ser(serial_table[index]);
         spin_unlock_irqrestore(&serial_table_lock, flags);
 
         return serial;
@@ -561,6 +565,7 @@ static int get_free_serial_index(void)
 static void set_serial_by_index(unsigned index, struct hso_serial *serial)
 {
         unsigned long flags;
+
         spin_lock_irqsave(&serial_table_lock, flags);
         if (serial)
                 serial_table[index] = serial->parent;
@@ -569,7 +574,7 @@ static void set_serial_by_index(unsigned index, struct hso_serial *serial)
         spin_unlock_irqrestore(&serial_table_lock, flags);
 }
 
-/* log a meaningfull explanation of an USB status */
+/* log a meaningful explanation of an USB status */
 static void log_usb_status(int status, const char *function)
 {
         char *explanation;
@@ -1103,8 +1108,8 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
         /* reset the rts and dtr */
         /* do the actual close */
         serial->open_count--;
+        kref_put(&serial->parent->ref, hso_serial_ref_free);
         if (serial->open_count <= 0) {
-                kref_put(&serial->parent->ref, hso_serial_ref_free);
                 serial->open_count = 0;
                 if (serial->tty) {
                         serial->tty->driver_data = NULL;
@@ -1467,7 +1472,8 @@ static void hso_std_serial_write_bulk_callback(struct urb *urb)
                 return;
         }
         hso_put_activity(serial->parent);
-        tty_wakeup(serial->tty);
+        if (serial->tty)
+                tty_wakeup(serial->tty);
         hso_kick_transmit(serial);
 
         D1(" ");
@@ -1538,7 +1544,8 @@ static void ctrl_callback(struct urb *urb)
                         clear_bit(HSO_SERIAL_FLAG_RX_SENT, &serial->flags);
         } else {
                 hso_put_activity(serial->parent);
-                tty_wakeup(serial->tty);
+                if (serial->tty)
+                        tty_wakeup(serial->tty);
                 /* response to a write command */
                 hso_kick_transmit(serial);
         }
@@ -2652,7 +2659,7 @@ static void hso_free_interface(struct usb_interface *interface)
                         hso_stop_net_device(network_table[i]);
                         cancel_work_sync(&network_table[i]->async_put_intf);
                         cancel_work_sync(&network_table[i]->async_get_intf);
-                        if(rfk)
+                        if (rfk)
                                 rfkill_unregister(rfk);
                         hso_free_net_device(network_table[i]);
                 }
@@ -2723,7 +2730,7 @@ static int hso_mux_submit_intr_urb(struct hso_shared_int *shared_int,
 }
 
 /* operations setup of the serial interface */
-static struct tty_operations hso_serial_ops = {
+static const struct tty_operations hso_serial_ops = {
         .open = hso_serial_open,
         .close = hso_serial_close,
         .write = hso_serial_write,