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>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 8a5258339ca..fb4ca287008 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 ");