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backlight: apple_bl: use pr_debug()/pr_err() instead of printk() 

Use pr_debug()/pr_err() 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_debug(... to printk(KERN_DEBUG, ...
WARNING: Prefer pr_err(... to printk(KERN_ERR, ...

[akpm@linux-foundation.org: use KBUILD_MODNAME, per Joe]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Matthew Garrett <mjg@redhat.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 35f961623c
commit 7b12c1b9ee
1 changed files with 8 additions and 12 deletions
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20
drivers/video/backlight/apple_bl.c
View File

@ -16,6 +16,8 @@
* get at the firmware code in order to figure out what it's actually doing.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
@ -40,8 +42,6 @@ struct hw_data {
static const struct hw_data *hw_data;
#define DRIVER "apple_backlight: "
/* Module parameters. */
static int debug;
module_param_named(debug, debug, int, 0644);
@ -61,8 +61,7 @@ static int intel_chipset_send_intensity(struct backlight_device *bd)
int intensity = bd->props.brightness;
if (debug)
printk(KERN_DEBUG DRIVER "setting brightness to %d\n",
intensity);
pr_debug("setting brightness to %d\n", intensity);
intel_chipset_set_brightness(intensity);
return 0;
@ -77,8 +76,7 @@ static int intel_chipset_get_intensity(struct backlight_device *bd)
intensity = inb(0xb3) >> 4;
if (debug)
printk(KERN_DEBUG DRIVER "read brightness of %d\n",
intensity);
pr_debug("read brightness of %d\n", intensity);
return intensity;
}
@ -108,8 +106,7 @@ static int nvidia_chipset_send_intensity(struct backlight_device *bd)
int intensity = bd->props.brightness;
if (debug)
printk(KERN_DEBUG DRIVER "setting brightness to %d\n",
intensity);
pr_debug("setting brightness to %d\n", intensity);
nvidia_chipset_set_brightness(intensity);
return 0;
@ -124,8 +121,7 @@ static int nvidia_chipset_get_intensity(struct backlight_device *bd)
intensity = inb(0x52f) >> 4;
if (debug)
printk(KERN_DEBUG DRIVER "read brightness of %d\n",
intensity);
pr_debug("read brightness of %d\n", intensity);
return intensity;
}
@ -150,7 +146,7 @@ static int __devinit apple_bl_add(struct acpi_device *dev)
host = pci_get_bus_and_slot(0, 0);
if (!host) {
printk(KERN_ERR DRIVER "unable to find PCI host\n");
pr_err("unable to find PCI host\n");
return -ENODEV;
}
@ -162,7 +158,7 @@ static int __devinit apple_bl_add(struct acpi_device *dev)
pci_dev_put(host);
if (!hw_data) {
printk(KERN_ERR DRIVER "unknown hardware\n");
pr_err("unknown hardware\n");
return -ENODEV;
}