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ipwireless: switch to ->[sg]et_serial()
authorAl Viro <viro@zeniv.linux.org.uk>
Wed, 12 Sep 2018 02:00:08 +0000 (22:00 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Sat, 13 Oct 2018 04:50:31 +0000 (00:50 -0400)
Acked-by: David Sterba <dsterba@suse.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
drivers/tty/ipwireless/tty.c

index 1ef751c..fad3401 100644 (file)
@@ -248,22 +248,29 @@ static int ipw_write_room(struct tty_struct *linux_tty)
        return room;
 }
 
-static int ipwireless_get_serial_info(struct ipw_tty *tty,
-                                     struct serial_struct __user *retinfo)
+static int ipwireless_get_serial_info(struct tty_struct *linux_tty,
+                                     struct serial_struct *ss)
 {
-       struct serial_struct tmp;
+       struct ipw_tty *tty = linux_tty->driver_data;
 
-       memset(&tmp, 0, sizeof(tmp));
-       tmp.type = PORT_UNKNOWN;
-       tmp.line = tty->index;
-       tmp.baud_base = 115200;
+       if (!tty)
+               return -ENODEV;
 
-       if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-               return -EFAULT;
+       if (!tty->port.count)
+               return -EINVAL;
 
+       ss->type = PORT_UNKNOWN;
+       ss->line = tty->index;
+       ss->baud_base = 115200;
        return 0;
 }
 
+static int ipwireless_set_serial_info(struct tty_struct *linux_tty,
+                                     struct serial_struct *ss)
+{
+       return 0;       /* Keeps the PCMCIA scripts happy. */
+}
+
 static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
 {
        struct ipw_tty *tty = linux_tty->driver_data;
@@ -386,15 +393,6 @@ static int ipw_ioctl(struct tty_struct *linux_tty,
                return -EINVAL;
 
        /* FIXME: Exactly how is the tty object locked here .. */
-
-       switch (cmd) {
-       case TIOCGSERIAL:
-               return ipwireless_get_serial_info(tty, (void __user *) arg);
-
-       case TIOCSSERIAL:
-               return 0;       /* Keeps the PCMCIA scripts happy. */
-       }
-
        if (tty->tty_type == TTYTYPE_MODEM) {
                switch (cmd) {
                case PPPIOCGCHAN:
@@ -561,6 +559,8 @@ static const struct tty_operations tty_ops = {
        .chars_in_buffer = ipw_chars_in_buffer,
        .tiocmget = ipw_tiocmget,
        .tiocmset = ipw_tiocmset,
+       .set_serial = ipwireless_set_serial_info,
+       .get_serial = ipwireless_get_serial_info,
 };
 
 int ipwireless_tty_init(void)