diff options
| author | Chris Brand <chris.brand@broadcom.com> | 2013-07-03 15:07:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 16:08:00 -0700 |
| commit | 0734e27f0befe9e88c2b5dad789b05b7bf86ce90 (patch) | |
| tree | 2fc9329ef599d4b91dd8d05fd58d3f66f2106fd4 /drivers/rtc/interface.c | |
| parent | 5ee67484dede220d96c0b323c78d02c63fdfae44 (diff) | |
| download | linux-0734e27f0befe9e88c2b5dad789b05b7bf86ce90.tar.bz2 | |
drivers/rtc/interface.c: return -EBUSY, not -EACCES when device is busy
If rtc->irq_task is non-NULL and task is NULL, they always
rtc_irq_set_freq(), whenever err is set to -EBUSY it will then immediately
be set to -EACCES, misleading the caller as to the underlying problem.
Signed-off-by: Chris Brand <chris.brand@broadcom.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/interface.c')
| -rw-r--r-- | drivers/rtc/interface.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 14c1efdd0757..72c5cdbe0791 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -698,9 +698,9 @@ retry: spin_lock_irqsave(&rtc->irq_task_lock, flags); if (rtc->irq_task != NULL && task == NULL) err = -EBUSY; - if (rtc->irq_task != task) + else if (rtc->irq_task != task) err = -EACCES; - if (!err) { + else { if (rtc_update_hrtimer(rtc, enabled) < 0) { spin_unlock_irqrestore(&rtc->irq_task_lock, flags); cpu_relax(); @@ -734,9 +734,9 @@ retry: spin_lock_irqsave(&rtc->irq_task_lock, flags); if (rtc->irq_task != NULL && task == NULL) err = -EBUSY; - if (rtc->irq_task != task) + else if (rtc->irq_task != task) err = -EACCES; - if (!err) { + else { rtc->irq_freq = freq; if (rtc->pie_enabled && rtc_update_hrtimer(rtc, 1) < 0) { spin_unlock_irqrestore(&rtc->irq_task_lock, flags); |