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| author | Domen Puncer <domen@coderock.org> | 2005-06-25 14:58:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-25 16:24:57 -0700 |
| commit | d8eddb620499dc638aeb4d5d3751974ca697ab39 (patch) | |
| tree | 50ae4be7b9018c1136893852bec208c40061415f | |
| parent | d2a457cf26020fb7aa992915388001eb983d0aa8 (diff) | |
| download | linux-d8eddb620499dc638aeb4d5d3751974ca697ab39.tar.gz linux-d8eddb620499dc638aeb4d5d3751974ca697ab39.tar.bz2 linux-d8eddb620499dc638aeb4d5d3751974ca697ab39.zip | |
[PATCH] char/ds1620: use msleep() instead of schedule_timeout()
Not sure why any driver needs to sleep for *two* ticks, so let's fix it.
Use msleep() instead of schedule_timeout() to guarantee the task delays as
expected. Signals are never checked for by the callers or in the function
itself, so use TASK_UNINTERRUPTIBLE instead of TASK_INTERRUPTIBLE. The
delay is presumed to have been written when HZ==100, and thus has been
multiplied by 10 to pass to msleep().
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Domen Puncer <domen@coderock.org>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | drivers/char/ds1620.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/char/ds1620.c b/drivers/char/ds1620.c index 7def6ad51798..62cda25724e3 100644 --- a/drivers/char/ds1620.c +++ b/drivers/char/ds1620.c @@ -163,8 +163,7 @@ static void ds1620_out(int cmd, int bits, int value) netwinder_ds1620_reset(); netwinder_unlock(&flags); - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(2); + msleep(20); } static unsigned int ds1620_in(int cmd, int bits) |