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authorTilman Schmidt <tilman@imap.cc>2008-11-29 21:38:04 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-29 21:38:04 -0800
commitaf4218c3a699542adc9b76c8972828a726e7b0dc (patch)
tree393cbcc6df5b6bf8ffd3614ff18ac5fff80db483 /drivers/isdn
parentc5419e6f054c877339f754e02c3b1dafd88cd96c (diff)
downloadlinux-af4218c3a699542adc9b76c8972828a726e7b0dc.tar.bz2
gigaset: remove unnecessary poll method
The N_GIGASET_M101 line discipline implemented by the ser_gigaset driver does not transfer any data from/to userspace through the tty interface. Therefore a poll method is not needed. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn')
-rw-r--r--drivers/isdn/gigaset/ser-gigaset.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
index 07052ed2a0c5..0b8c8f2b433f 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -16,7 +16,6 @@
#include <linux/moduleparam.h>
#include <linux/platform_device.h>
#include <linux/tty.h>
-#include <linux/poll.h>
#include <linux/completion.h>
/* Version Information */
@@ -571,7 +570,6 @@ gigaset_tty_close(struct tty_struct *tty)
}
/* prevent other callers from entering ldisc methods */
- /* FIXME: should use the tty state flags */
tty->disc_data = NULL;
if (!cs->hw.ser)
@@ -673,18 +671,6 @@ gigaset_tty_ioctl(struct tty_struct *tty, struct file *file,
}
/*
- * Poll on the tty.
- * Unused, always return zero.
- *
- * FIXME: should probably return an exception - especially on hangup
- */
-static unsigned int
-gigaset_tty_poll(struct tty_struct *tty, struct file *file, poll_table *wait)
-{
- return 0;
-}
-
-/*
* Called by the tty driver when a block of data has been received.
* Will not be re-entered while running but other ldisc functions
* may be called in parallel.
@@ -773,7 +759,6 @@ static struct tty_ldisc_ops gigaset_ldisc = {
.read = gigaset_tty_read,
.write = gigaset_tty_write,
.ioctl = gigaset_tty_ioctl,
- .poll = gigaset_tty_poll,
.receive_buf = gigaset_tty_receive,
.write_wakeup = gigaset_tty_wakeup,
};