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drivers/rtc/interface.c: return -EBUSY, not -EACCES when device is busy

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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 <[email protected]>
Acked-by: Alessandro Zummo <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Chris Brand 2013-07-03 15:07:57 -07:00 • committed by Linus Torvalds
commit 0734e27f0b
1 changed files with 4 additions and 4 deletions
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8
drivers/rtc/interface.c
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@ -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);