Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / drivers / net / wireless / strip.c

diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index ec8cf29..18a4458 100644 (file)
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -112,7 +112,7 @@ static const char StripVersion[] = "1.3A-STUART.CHESHIRE";
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/time.h>
-
+#include <linux/jiffies.h>
 
 /************************************************************************/
 /* Useful structures and definitions                                   */
@@ -209,7 +209,7 @@ enum {
        NoStructure = 0,        /* Really old firmware */
        StructuredMessages = 1, /* Parsable AT response msgs */
        ChecksummedMessages = 2 /* Parsable AT response msgs with checksums */
-} FirmwareLevel;
+};
 
 struct strip {
        int magic;
@@ -860,12 +860,9 @@ static int allocate_buffers(struct strip *strip_info, int mtu)
                strip_info->mtu = dev->mtu = mtu;
                return (1);
        }
-       if (r)
-               kfree(r);
-       if (s)
-               kfree(s);
-       if (t)
-               kfree(t);
+       kfree(r);
+       kfree(s);
+       kfree(t);
        return (0);
 }
 
@@ -922,13 +919,9 @@ static int strip_change_mtu(struct net_device *dev, int new_mtu)
        printk(KERN_NOTICE "%s: strip MTU changed fom %d to %d.\n",
               strip_info->dev->name, old_mtu, strip_info->mtu);
 
-       if (orbuff)
-               kfree(orbuff);
-       if (osbuff)
-               kfree(osbuff);
-       if (otbuff)
-               kfree(otbuff);
-
+       kfree(orbuff);
+       kfree(osbuff);
+       kfree(otbuff);
        return 0;
 }
 
@@ -1352,7 +1345,7 @@ static unsigned char *strip_make_packet(unsigned char *buffer,
                struct in_device *in_dev;
 
                rcu_read_lock();
-               in_dev = __in_dev_get(strip_info->dev);
+               in_dev = __in_dev_get_rcu(strip_info->dev);
                if (in_dev == NULL) {
                        rcu_read_unlock();
                        return NULL;
@@ -1508,7 +1501,7 @@ static void strip_send(struct strip *strip_info, struct sk_buff *skb)
 
                brd = addr = 0;
                rcu_read_lock();
-               in_dev = __in_dev_get(strip_info->dev);
+               in_dev = __in_dev_get_rcu(strip_info->dev);
                if (in_dev) {
                        if (in_dev->ifa_list) {
                                brd = in_dev->ifa_list->ifa_broadcast;
@@ -1576,7 +1569,7 @@ static int strip_xmit(struct sk_buff *skb, struct net_device *dev)
        del_timer(&strip_info->idle_timer);
 
 
-       if (jiffies - strip_info->pps_timer > HZ) {
+       if (time_after(jiffies, strip_info->pps_timer + HZ)) {
                unsigned long t = jiffies - strip_info->pps_timer;
                unsigned long rx_pps_count = (strip_info->rx_pps_count * HZ * 8 + t / 2) / t;
                unsigned long tx_pps_count = (strip_info->tx_pps_count * HZ * 8 + t / 2) / t;
@@ -1682,11 +1675,6 @@ static int strip_rebuild_header(struct sk_buff *skb)
 /************************************************************************/
 /* Receiving routines                                                  */
 
-static int strip_receive_room(struct tty_struct *tty)
-{
-       return 0x10000;         /* We can handle an infinite amount of data. :-) */
-}
-
 /*
  * This function parses the response to the ATS300? command,
  * extracting the radio version and serial number.
@@ -2431,7 +2419,7 @@ static struct net_device_stats *strip_get_stats(struct net_device *dev)
 /*
  * Here's the order things happen:
  * When the user runs "slattach -p strip ..."
- *  1. The TTY module calls strip_open
+ *  1. The TTY module calls strip_open;;
  *  2. strip_open calls strip_alloc
  *  3.                  strip_alloc calls register_netdev
  *  4.                  register_netdev calls strip_dev_init
@@ -2498,18 +2486,13 @@ static int strip_close_low(struct net_device *dev)
        /*
         * Free all STRIP frame buffers.
         */
-       if (strip_info->rx_buff) {
-               kfree(strip_info->rx_buff);
-               strip_info->rx_buff = NULL;
-       }
-       if (strip_info->sx_buff) {
-               kfree(strip_info->sx_buff);
-               strip_info->sx_buff = NULL;
-       }
-       if (strip_info->tx_buff) {
-               kfree(strip_info->tx_buff);
-               strip_info->tx_buff = NULL;
-       }
+       kfree(strip_info->rx_buff);
+       strip_info->rx_buff = NULL;
+       kfree(strip_info->sx_buff);
+       strip_info->sx_buff = NULL;
+       kfree(strip_info->tx_buff);
+       strip_info->tx_buff = NULL;
+
        del_timer(&strip_info->idle_timer);
        return 0;
 }
@@ -2664,6 +2647,8 @@ static int strip_open(struct tty_struct *tty)
 
        strip_info->tty = tty;
        tty->disc_data = strip_info;
+       tty->receive_room = 65536;
+
        if (tty->driver->flush_buffer)
                tty->driver->flush_buffer(tty);
 
@@ -2774,7 +2759,6 @@ static struct tty_ldisc strip_ldisc = {
        .close = strip_close,
        .ioctl = strip_ioctl,
        .receive_buf = strip_receive_buf,
-       .receive_room = strip_receive_room,
        .write_wakeup = strip_write_some_more,
 };
 
@@ -2828,7 +2812,7 @@ static void __exit strip_exit_driver(void)
        /* Unregister with the /proc/net file here. */
        proc_net_remove("strip");
 
-       if ((i = tty_register_ldisc(N_STRIP, NULL)))
+       if ((i = tty_unregister_ldisc(N_STRIP)))
                printk(KERN_ERR "STRIP: can't unregister line discipline (err = %d)\n", i);
 
        printk(signoff);