linux-kernel - [PATCH] progear_bl: use platform_device_register

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Date:	Sun, 21 Sep 2008 23:38:29 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Marcin Juszkiewicz <linux@....one.pl>,
	Richard Purdie <rpurdie@...ys.net>
Subject: [PATCH] progear_bl: use platform_device_register_simple()

This change also fixes error handling when platform_device_alloc() fails.
(When platform_device_alloc() failed, it returns error without
unregistering progearbl_driver)

Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
Cc: Marcin Juszkiewicz <linux@....one.pl>
Cc: Richard Purdie <rpurdie@...ys.net>
---
 drivers/video/backlight/progear_bl.c |   20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

Index: 2.6-git/drivers/video/backlight/progear_bl.c
===================================================================
--- 2.6-git.orig/drivers/video/backlight/progear_bl.c
+++ 2.6-git/drivers/video/backlight/progear_bl.c
@@ -119,20 +119,16 @@ static int __init progearbl_init(void)
 {
 	int ret = platform_driver_register(&progearbl_driver);
 
-	if (!ret) {
-		progearbl_device = platform_device_alloc("progear-bl", -1);
-		if (!progearbl_device)
-			return -ENOMEM;
-
-		ret = platform_device_add(progearbl_device);
-
-		if (ret) {
-			platform_device_put(progearbl_device);
-			platform_driver_unregister(&progearbl_driver);
-		}
+	if (ret)
+		return ret;
+	progearbl_device = platform_device_register_simple("progear-bl", -1,
+								NULL, 0);
+	if (IS_ERR(progearbl_device)) {
+		platform_driver_unregister(&progearbl_driver);
+		return PTR_ERR(progearbl_device);
 	}
 
-	return ret;
+	return 0;
 }
 
 static void __exit progearbl_exit(void)
--
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