From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Sun, 11 Mar 2018 05:55:49 +0000 (+0530)
Subject: driver core: platform: use put_device() if device_register fail
X-Git-Tag: Ubuntu-5.13.0-19.19~11296^2~23
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=c8ae1674cd0d688661a8b85b8b2d940516933322;p=mirror_ubuntu-jammy-kernel.git

driver core: platform: use put_device() if device_register fail

if device_register() returned an error! Always use put_device()
to give up the reference initialized.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index f1bf7b38d91c..8075ddc70a17 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -1153,8 +1153,10 @@ int __init platform_bus_init(void)
 	early_platform_cleanup();
 
 	error = device_register(&platform_bus);
-	if (error)
+	if (error) {
+		put_device(&platform_bus);
 		return error;
+	}
 	error =  bus_register(&platform_bus_type);
 	if (error)
 		device_unregister(&platform_bus);