From: Rafael J. Wysocki <rjw@sisk.pl>
Date: Fri, 3 Dec 2010 22:14:26 +0000 (+0100)
Subject: PM: Use pm_wakeup_pending() in __device_suspend()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d83f905e126f8cbc5e4addc5d1a64aea785b732e;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

PM: Use pm_wakeup_pending() in __device_suspend()

Before starting to suspend a device in __device_suspend() check if
there's a request to abort the power transition and return -EBUSY
in that case.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 8a5258339ca2..fb4ca2870081 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -877,6 +877,11 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
 	if (async_error)
 		goto End;
 
+	if (pm_wakeup_pending()) {
+		async_error = -EBUSY;
+		goto End;
+	}
+
 	if (dev->class) {
 		if (dev->class->pm) {
 			pm_dev_dbg(dev, state, "class ");