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authorTilman Schmidt <tilman@imap.cc>2015-07-14 00:37:13 +0200
committerDavid S. Miller <davem@davemloft.net>2015-07-16 02:24:45 +0200
commit62c13bad39211387afd4354e8e127a535d13e70d (patch)
treec0fc440922c543073a7ef0dad61b16c6922a184a /drivers/isdn/gigaset
parentisdn/gigaset: reset tty->receive_room when attaching ser_gigaset (diff)
downloadlinux-62c13bad39211387afd4354e8e127a535d13e70d.tar.xz
linux-62c13bad39211387afd4354e8e127a535d13e70d.zip
isdn/gigaset: drop unused ldisc methods
The line discipline read and write methods are optional so the dummy methods in ser_gigaset are unnecessary and can be removed. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn/gigaset')
-rw-r--r--drivers/isdn/gigaset/ser-gigaset.c24
1 files changed, 0 insertions, 24 deletions
diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
index 3ac9c4194814..375be509e95f 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -607,28 +607,6 @@ static int gigaset_tty_hangup(struct tty_struct *tty)
}
/*
- * Read on the tty.
- * Unused, received data goes only to the Gigaset driver.
- */
-static ssize_t
-gigaset_tty_read(struct tty_struct *tty, struct file *file,
- unsigned char __user *buf, size_t count)
-{
- return -EAGAIN;
-}
-
-/*
- * Write on the tty.
- * Unused, transmit data comes only from the Gigaset driver.
- */
-static ssize_t
-gigaset_tty_write(struct tty_struct *tty, struct file *file,
- const unsigned char *buf, size_t count)
-{
- return -EAGAIN;
-}
-
-/*
* Ioctl on the tty.
* Called in process context only.
* May be re-entered by multiple ioctl calling threads.
@@ -761,8 +739,6 @@ static struct tty_ldisc_ops gigaset_ldisc = {
.open = gigaset_tty_open,
.close = gigaset_tty_close,
.hangup = gigaset_tty_hangup,
- .read = gigaset_tty_read,
- .write = gigaset_tty_write,
.ioctl = gigaset_tty_ioctl,
.receive_buf = gigaset_tty_receive,
.write_wakeup = gigaset_tty_wakeup,