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authorMark Brown <broonie@kernel.org>2015-07-24 18:29:31 +0100
committerMark Brown <broonie@kernel.org>2015-07-24 18:29:31 +0100
commit41dae91a7206d9a09047f3d376282bba4d9545b5 (patch)
treefe12449256757eea6c14d7d041cc494b712e83ba /drivers/base/power/wakeup.c
parent5d506a5ad4155e813d254d2f02ce17b58045423c (diff)
parent3a003baeec246f604ed1d2e0087560d7f15edcc6 (diff)
Merge branch 'topic/ocp' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-qcom-spmi
Diffstat (limited to 'drivers/base/power/wakeup.c')
-rw-r--r--drivers/base/power/wakeup.c31
1 files changed, 10 insertions, 21 deletions
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 40f71603378c..51f15bc15774 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -281,32 +281,25 @@ EXPORT_SYMBOL_GPL(device_wakeup_enable);
* Attach a device wakeirq to the wakeup source so the device
* wake IRQ can be configured automatically for suspend and
* resume.
+ *
+ * Call under the device's power.lock lock.
*/
int device_wakeup_attach_irq(struct device *dev,
struct wake_irq *wakeirq)
{
struct wakeup_source *ws;
- int ret = 0;
- spin_lock_irq(&dev->power.lock);
ws = dev->power.wakeup;
if (!ws) {
dev_err(dev, "forgot to call call device_init_wakeup?\n");
- ret = -EINVAL;
- goto unlock;
+ return -EINVAL;
}
- if (ws->wakeirq) {
- ret = -EEXIST;
- goto unlock;
- }
+ if (ws->wakeirq)
+ return -EEXIST;
ws->wakeirq = wakeirq;
-
-unlock:
- spin_unlock_irq(&dev->power.lock);
-
- return ret;
+ return 0;
}
/**
@@ -314,20 +307,16 @@ unlock:
* @dev: Device to handle
*
* Removes a device wakeirq from the wakeup source.
+ *
+ * Call under the device's power.lock lock.
*/
void device_wakeup_detach_irq(struct device *dev)
{
struct wakeup_source *ws;
- spin_lock_irq(&dev->power.lock);
ws = dev->power.wakeup;
- if (!ws)
- goto unlock;
-
- ws->wakeirq = NULL;
-
-unlock:
- spin_unlock_irq(&dev->power.lock);
+ if (ws)
+ ws->wakeirq = NULL;
}
/**