diff options
| author | Jingoo Han <jg1.han@samsung.com> | 2012-01-10 15:09:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-10 16:30:48 -0800 |
| commit | 66655760bf38861299e3c8196f5303f886b0eef9 (patch) | |
| tree | fb027ccb8c61fa987aec251887c91541d310be9d /drivers/video/backlight/lcd.c | |
| parent | 1cfc6fee34a4343d79357c46722eb840fbc04f46 (diff) | |
| download | linux-66655760bf38861299e3c8196f5303f886b0eef9.tar.bz2 | |
backlight: use kstrtoul()
The usage of simple_strtoul() or strict_strtoul() is not preferred. Thus,
kstrtoul should be used.
This patch also fixes checkpatch error as follows:
ERROR: space required after that ',' (ctx:VxV)
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/backlight/lcd.c')
| -rw-r--r-- | drivers/video/backlight/lcd.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 71a11cadffc4..79c1b0d609a8 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -97,19 +97,16 @@ static ssize_t lcd_store_power(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int rc = -ENXIO; - char *endp; struct lcd_device *ld = to_lcd_device(dev); - int power = simple_strtoul(buf, &endp, 0); - size_t size = endp - buf; + unsigned long power; - if (isspace(*endp)) - size++; - if (size != count) - return -EINVAL; + rc = kstrtoul(buf, 0, &power); + if (rc) + return rc; mutex_lock(&ld->ops_lock); if (ld->ops && ld->ops->set_power) { - pr_debug("lcd: set power to %d\n", power); + pr_debug("lcd: set power to %lu\n", power); ld->ops->set_power(ld, power); rc = count; } @@ -136,19 +133,16 @@ static ssize_t lcd_store_contrast(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int rc = -ENXIO; - char *endp; struct lcd_device *ld = to_lcd_device(dev); - int contrast = simple_strtoul(buf, &endp, 0); - size_t size = endp - buf; + unsigned long contrast; - if (isspace(*endp)) - size++; - if (size != count) - return -EINVAL; + rc = kstrtoul(buf, 0, &contrast); + if (rc) + return rc; mutex_lock(&ld->ops_lock); if (ld->ops && ld->ops->set_contrast) { - pr_debug("lcd: set contrast to %d\n", contrast); + pr_debug("lcd: set contrast to %lu\n", contrast); ld->ops->set_contrast(ld, contrast); rc = count; } |