[PATCH] clocksource: decrement reference count when device_register() fail

[Yangtao Li]

device_register() may fail, use put_device() giving up the refconut
to avoid refcount leak.

Signed-off-by: Yangtao Li <tiny.win...@gmail.com>
---
 kernel/time/clocksource.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 3bcc19ceb073..0a830fedc7ef 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -1183,8 +1183,11 @@ static int __init init_clocksource_sysfs(void)
 {
        int error = subsys_system_register(&clocksource_subsys, NULL);
 
-       if (!error)
+       if (!error) {
                error = device_register(&device_clocksource);
+               if (error)
+                       put_device(&device_clocksource);
+       }
 
        return error;
 }
-- 
2.17.0