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backlight: use pr_warn() and pr_debug() instead of printk() 

Use pr_warn() and pr_debug() instead of printk to allow dynamic debugging.
The pr_fmt prefix for pr_ macros is used.  Also fix checkpatch warnings
as below:

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

[akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jingoo Han 2012-05-29 15:07:16 -07:00 committed by Linus Torvalds
parent 71d7225cd4
commit 35f961623c
2 changed files with 12 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/video/backlight/backlight.c
View File

@ -5,6 +5,8 @@
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
@ -123,7 +125,7 @@ static ssize_t backlight_store_power(struct device *dev,
rc = -ENXIO;
mutex_lock(&bd->ops_lock);
if (bd->ops) {
pr_debug("backlight: set power to %lu\n", power);
pr_debug("set power to %lu\n", power);
if (bd->props.power != power) {
bd->props.power = power;
backlight_update_status(bd);
@ -161,8 +163,7 @@ static ssize_t backlight_store_brightness(struct device *dev,
if (brightness > bd->props.max_brightness)
rc = -EINVAL;
else {
pr_debug("backlight: set brightness to %lu\n",
brightness);
pr_debug("set brightness to %lu\n", brightness);
bd->props.brightness = brightness;
backlight_update_status(bd);
rc = count;
@ -378,8 +379,8 @@ 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);
}

10
drivers/video/backlight/lcd.c
View File

@ -5,6 +5,8 @@
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
@ -116,7 +118,7 @@ static ssize_t lcd_store_power(struct device *dev,
mutex_lock(&ld->ops_lock);
if (ld->ops && ld->ops->set_power) {
pr_debug("lcd: set power to %lu\n", power);
pr_debug("set power to %lu\n", power);
ld->ops->set_power(ld, power);
rc = count;
}
@ -152,7 +154,7 @@ static ssize_t lcd_store_contrast(struct device *dev,
mutex_lock(&ld->ops_lock);
if (ld->ops && ld->ops->set_contrast) {
pr_debug("lcd: set contrast to %lu\n", contrast);
pr_debug("set contrast to %lu\n", contrast);
ld->ops->set_contrast(ld, contrast);
rc = count;
}
@ -263,8 +265,8 @@ 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);
}