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| author | Alexander Gordeev <lasaine@lvk.cs.msu.su> | 2011-01-13 02:00:55 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-13 17:03:20 +0100 |
| commit | 12f9b1f9c11700893a7b453705d95b260d78f268 (patch) | |
| tree | 49cd6a357b37d5f1e4ff02ec08192de381cc8509 | |
| parent | pps: simplify conditions a bit (diff) | |
| download | linux-12f9b1f9c11700893a7b453705d95b260d78f268.tar.xz linux-12f9b1f9c11700893a7b453705d95b260d78f268.zip | |
pps: timestamp is always passed to dcd_change()
Remove the code that gatheres timestamp in pps_tty_dcd_change() in case
passed ts parameter is NULL because it never happens in the current code.
Fix comments as well.
Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | Documentation/serial/tty.txt | 2 | ||||
| -rw-r--r-- | drivers/pps/clients/pps-ldisc.c | 8 | ||||
| -rw-r--r-- | include/linux/tty_ldisc.h | 2 |
3 files changed, 2 insertions, 10 deletions
diff --git a/Documentation/serial/tty.txt b/Documentation/serial/tty.txt index 7c900507279f..540db41dfd5d 100644 --- a/Documentation/serial/tty.txt +++ b/Documentation/serial/tty.txt @@ -107,7 +107,7 @@ write_wakeup() - May be called at any point between open and close. dcd_change() - Report to the tty line the current DCD pin status changes and the relative timestamp. The timestamp - can be NULL. + cannot be NULL. Driver Access diff --git a/drivers/pps/clients/pps-ldisc.c b/drivers/pps/clients/pps-ldisc.c index 1b3c6eda12ba..79451f2dea6a 100644 --- a/drivers/pps/clients/pps-ldisc.c +++ b/drivers/pps/clients/pps-ldisc.c @@ -32,14 +32,6 @@ static void pps_tty_dcd_change(struct tty_struct *tty, unsigned int status, struct pps_event_time *ts) { struct pps_device *pps = (struct pps_device *)tty->disc_data; - struct pps_event_time __ts; - - /* First of all we get the time stamp... */ - pps_get_ts(&__ts); - - /* Does caller give us a timestamp? */ - if (!ts) /* No. Do it ourself! */ - ts = &__ts; BUG_ON(pps == NULL); diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h index 763e061e19f1..ff7dc08696a8 100644 --- a/include/linux/tty_ldisc.h +++ b/include/linux/tty_ldisc.h @@ -104,7 +104,7 @@ * struct pps_event_time *ts) * * Tells the discipline that the DCD pin has changed its status and - * the relative timestamp. Pointer ts can be NULL. + * the relative timestamp. Pointer ts cannot be NULL. */ #include <linux/fs.h> |