From cc21942bce652d1a92dae85b785378256e1df1f7 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 6 Jul 2016 19:33:05 +0200 Subject: [PATCH] backlight: lcd: Fix race condition during register MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Once device_register is called for a device its attributes might be accessed. As the callbacks of a lcd device's attributes make use of the lcd_ops, the respective member must be setup before calling device_register. Signed-off-by: Uwe Kleine-König Signed-off-by: Lee Jones --- drivers/video/backlight/lcd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 7de847df224f..4b40c6a4d441 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -226,6 +226,8 @@ struct lcd_device *lcd_device_register(const char *name, struct device *parent, dev_set_name(&new_ld->dev, "%s", name); dev_set_drvdata(&new_ld->dev, devdata); + new_ld->ops = ops; + rc = device_register(&new_ld->dev); if (rc) { put_device(&new_ld->dev); @@ -238,8 +240,6 @@ struct lcd_device *lcd_device_register(const char *name, struct device *parent, return ERR_PTR(rc); } - new_ld->ops = ops; - return new_ld; } EXPORT_SYMBOL(lcd_device_register); -- 2.20.1