Skip wakeup_source_sysfs_remove(), to fix null pinter access of
ws->dev, if wakeup source is unregistered before wakeup class
is registered from device_add().
Fixes: 2ca3d1ecb8c4 ("PM / wakeup: Register wakeup class kobj after device is added")
Signed-off-by: Neeraj Upadhyay <neeraju@xxxxxxxxxxxxxx>
---
drivers/base/power/wakeup.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 27f3e60..f8f8c0a 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -241,7 +241,8 @@ void wakeup_source_unregister(struct wakeup_source *ws)
{
if (ws) {
wakeup_source_remove(ws);
- wakeup_source_sysfs_remove(ws);
+ if (ws->dev)
+ wakeup_source_sysfs_remove(ws);
wakeup_source_destroy(ws);
}
}
--
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