sound: ASoC: Convert wm8510 to a new-style i2c driver

[linux-2.6-omap-h63xx.git] / drivers / char / tty_io.c

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index a27160ba21d7d8cb8eb9636da015075b1bc5b587..e4dce87095410f8f648137ecb992927a6630c483 100644 (file)
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -695,13 +695,23 @@ struct tty_driver *tty_find_polling_driver(char *name, int *line)
 {
        struct tty_driver *p, *res = NULL;
        int tty_line = 0;
+       int len;
        char *str;
 
+       for (str = name; *str; str++)
+               if ((*str >= '0' && *str <= '9') || *str == ',')
+                       break;
+       if (!*str)
+               return NULL;
+
+       len = str - name;
+       tty_line = simple_strtoul(str, &str, 10);
+
        mutex_lock(&tty_mutex);
        /* Search through the tty devices to look for a match */
        list_for_each_entry(p, &tty_drivers, tty_drivers) {
-               str = name + strlen(p->name);
-               tty_line = simple_strtoul(str, &str, 10);
+               if (strncmp(name, p->name, len) != 0)
+                       continue;
                if (*str == ',')
                        str++;
                if (*str == '\0')
@@ -2498,7 +2508,7 @@ static int tiocgwinsz(struct tty_struct *tty, struct winsize __user *arg)
 /**
  *     tty_do_resize           -       resize event
  *     @tty: tty being resized
- *     @real_tty: real tty (if using a pty/tty pair)
+ *     @real_tty: real tty (not the same as tty if using a pty/tty pair)
  *     @rows: rows (character)
  *     @cols: cols (character)
  *
@@ -2512,7 +2522,8 @@ int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty,
        struct pid *pgrp, *rpgrp;
        unsigned long flags;
 
-       mutex_lock(&tty->termios_mutex);
+       /* For a PTY we need to lock the tty side */
+       mutex_lock(&real_tty->termios_mutex);
        if (!memcmp(ws, &tty->winsize, sizeof(*ws)))
                goto done;
        /* Get the PID values and reference them so we can
@@ -2533,7 +2544,7 @@ int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty,
        tty->winsize = *ws;
        real_tty->winsize = *ws;
 done:
-       mutex_unlock(&tty->termios_mutex);
+       mutex_unlock(&real_tty->termios_mutex);
        return 0;
 }