From: Cornelia Huck <cornelia.huck@de.ibm.com>
Date: Mon, 27 Nov 2006 09:35:08 +0000 (+0100)
Subject: driver core fixes: device_register() retval check in platform.c
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fbfb14455391b89edcf37327526988dea7849532;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

driver core fixes: device_register() retval check in platform.c

Check the return value of device_register() in platform_bus_init().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index f9c903ba9fcd..30480f6f2af2 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -611,8 +611,15 @@ EXPORT_SYMBOL_GPL(platform_bus_type);
 
 int __init platform_bus_init(void)
 {
-	device_register(&platform_bus);
-	return bus_register(&platform_bus_type);
+	int error;
+
+	error = device_register(&platform_bus);
+	if (error)
+		return error;
+	error =  bus_register(&platform_bus_type);
+	if (error)
+		device_unregister(&platform_bus);
+	return error;
 }
 
 #ifndef ARCH_HAS_DMA_GET_REQUIRED_MASK