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 8a5258339ca2c45d6d097d4a14ab1cfd721694b2..fb4ca2870081b46b1a97240b21cab801809ed246 100644 (file)
--- 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 ");