[PATCH 1/7] backlight: use pr_warn instead of printk

[Jingoo Han]

This patch uses pr_warn instead of printk to allow dynamic debugging.
It also fixes checkpatch warnings as below:

WARNING: Prefer pr_warn(... to printk(KERN_WARNING, ...

Cc: Richard Purdie <rpurdie@xxxxxxxxx>
Signed-off-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
---
 drivers/video/backlight/backlight.c |    4 ++--
 drivers/video/backlight/lcd.c       |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index bf5b1ec..ba56075 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -378,8 +378,8 @@ static int __init backlight_class_init(void)
 {
 	backlight_class = class_create(THIS_MODULE, "backlight");
 	if (IS_ERR(backlight_class)) {
-		printk(KERN_WARNING "Unable to create backlight class; errno = %ld\n",
-				PTR_ERR(backlight_class));
+		pr_warn("Unable to create backlight class; errno = %ld\n",
+			PTR_ERR(backlight_class));
 		return PTR_ERR(backlight_class);
 	}
 
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index 1c298d5..291f1a1 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -263,8 +263,8 @@ static int __init lcd_class_init(void)
 {
 	lcd_class = class_create(THIS_MODULE, "lcd");
 	if (IS_ERR(lcd_class)) {
-		printk(KERN_WARNING "Unable to create backlight class; errno = %ld\n",
-				PTR_ERR(lcd_class));
+		pr_warn("Unable to create backlight class; errno = %ld\n",
+			PTR_ERR(lcd_class));
 		return PTR_ERR(lcd_class);
 	}
 
-- 
1.7.1


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