linux-kernel - [PATCH 3/4] backlight: lcd: call put_device if device

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Message-Id: <1386962557-8899-4-git-send-email-levex@linux.com>
Date:	Fri, 13 Dec 2013 20:22:36 +0100
From:	Levente Kurusa <levex@...ux.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Levente Kurusa <levex@...ux.com>, Jingoo Han <jg1.han@...sung.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	linux-fbdev@...r.kernel.org
Subject: [PATCH 3/4] backlight: lcd: call put_device if device_register fails

Currently we kfree the container of the device which failed to register.
This is wrong as the last reference is not given up with a put_device
call. Also, now that we have put_device() callen, we no longer need
the kfree as the new_ld->dev.release function will take care of kfreeing
the associated memory.

Signed-off-by: Levente Kurusa <levex@...ux.com>
---
 drivers/video/backlight/lcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index 93cf15e..7de847d 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -228,7 +228,7 @@ struct lcd_device *lcd_device_register(const char *name, struct device *parent,
 
 	rc = device_register(&new_ld->dev);
 	if (rc) {
-		kfree(new_ld);
+		put_device(&new_ld->dev);
 		return ERR_PTR(rc);
 	}
 
-- 
1.8.3.1

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