linux-kernel - [PATCH 14/28] driver core fixes: device_register() retval check in platform.c

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Date:	Wed,  7 Feb 2007 16:30:02 -0800
From:	Greg KH <greg@...ah.com>
To:	linux-kernel@...r.kernel.org
Cc:	Cornelia Huck <cornelia.huck@...ibm.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 14/28] driver core fixes: device_register() retval check in platform.c

From: Cornelia Huck <cornelia.huck@...ibm.com>

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

Signed-off-by: Cornelia Huck <cornelia.huck@...ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/base/platform.c |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index f9c903b..30480f6 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
-- 
1.4.4.4

-
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