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-rw-r--r--include/linux/reboot.h3
-rw-r--r--kernel/reboot.c3
2 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index 2b6bb593be5b..c4cc3b89ced1 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -129,11 +129,14 @@ enum sys_off_mode {
* @cb_data: User's callback data.
* @cmd: Command string. Currently used only by the sys-off restart mode,
* NULL otherwise.
+ * @dev: Device of the sys-off handler. Only if known (devm_register_*),
+ * NULL otherwise.
*/
struct sys_off_data {
int mode;
void *cb_data;
const char *cmd;
+ struct device *dev;
};
struct sys_off_handler *
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 6ebef11c8876..395a0ea3c7a8 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -55,6 +55,7 @@ struct sys_off_handler {
enum sys_off_mode mode;
bool blocking;
void *list;
+ struct device *dev;
};
/*
@@ -324,6 +325,7 @@ static int sys_off_notify(struct notifier_block *nb,
data.cb_data = handler->cb_data;
data.mode = mode;
data.cmd = cmd;
+ data.dev = handler->dev;
return handler->sys_off_cb(&data);
}
@@ -511,6 +513,7 @@ int devm_register_sys_off_handler(struct device *dev,
handler = register_sys_off_handler(mode, priority, callback, cb_data);
if (IS_ERR(handler))
return PTR_ERR(handler);
+ handler->dev = dev;
return devm_add_action_or_reset(dev, devm_unregister_sys_off_handler,
handler);