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authorChris Brand <chris.brand@broadcom.com>2013-07-04 02:07:57 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-04 03:08:00 +0400
commit0734e27f0befe9e88c2b5dad789b05b7bf86ce90 (patch)
tree2fc9329ef599d4b91dd8d05fd58d3f66f2106fd4 /drivers/rtc/interface.c
parent5ee67484dede220d96c0b323c78d02c63fdfae44 (diff)
downloadlinux-0734e27f0befe9e88c2b5dad789b05b7bf86ce90.tar.xz
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.c8
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);