[PATCH -next v2 1/2] watchdog: Clean up error handlings of __watchdog_register_device

From: Wang Wensheng
Date: Tue Nov 03 2020 - 01:53:07 EST


Signed-off-by: Wang Wensheng <wangwensheng4@xxxxxxxxxx>
---
drivers/watchdog/watchdog_core.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/watchdog/watchdog_core.c b/drivers/watchdog/watchdog_core.c
index 423844757812..c73871f41142 100644
--- a/drivers/watchdog/watchdog_core.c
+++ b/drivers/watchdog/watchdog_core.c
@@ -252,10 +252,8 @@ static int __watchdog_register_device(struct watchdog_device *wdd)
wdd->id = id;

ret = watchdog_dev_register(wdd);
- if (ret) {
- ida_simple_remove(&watchdog_ida, id);
- return ret;
- }
+ if (ret)
+ goto id_remove;
}

/* Module parameter to force watchdog policy on reboot. */
@@ -273,9 +271,7 @@ static int __watchdog_register_device(struct watchdog_device *wdd)
if (ret) {
pr_err("watchdog%d: Cannot register reboot notifier (%d)\n",
wdd->id, ret);
- watchdog_dev_unregister(wdd);
- ida_simple_remove(&watchdog_ida, id);
- return ret;
+ goto dev_unregister;
}
}

@@ -289,6 +285,13 @@ static int __watchdog_register_device(struct watchdog_device *wdd)
}

return 0;
+
+dev_unregister:
+ watchdog_dev_unregister(wdd);
+id_remove:
+ ida_simple_remove(&watchdog_ida, id);
+
+ return ret;
}

/**
--
2.25.0