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| author |   Kim, Milo <Milo.Kim@ti.com> | 2013-04-29 16:17:52 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 18:28:17 -0700 |
| commit | 6a7aeb1ae8d8b15073f730ad7828c4b53f1402c3 (patch) | |
| tree | cc309a801f3e53c672971bca4cc6cbc3383cbd9f /drivers/video | |
| parent | backlight: da903x_bl: use BL_CORE_SUSPENDRESUME option (diff) | |
| download | linux-dev-6a7aeb1ae8d8b15073f730ad7828c4b53f1402c3.tar.xz linux-dev-6a7aeb1ae8d8b15073f730ad7828c4b53f1402c3.zip | |
drivers/video/backlight/lp855x_bl.c: use PAGE_SIZE for the sysfs read operation
sysfs allocates PAGE_SIZE. It is used by each R/W operation method. Use
it instead of another buffer size.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/backlight/lp855x_bl.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c index 20111ef2f898..c98bdbfdc697 100644 --- a/drivers/video/backlight/lp855x_bl.c +++ b/drivers/video/backlight/lp855x_bl.c @@ -35,7 +35,6 @@ #define LP8557_EPROM_START 0x10 #define LP8557_EPROM_END 0x1E -#define BUF_SIZE 20 #define DEFAULT_BL_NAME "lcd-backlight" #define MAX_BRIGHTNESS 255 @@ -304,7 +303,7 @@ static ssize_t lp855x_get_chip_id(struct device *dev, struct device_attribute *attr, char *buf) { struct lp855x *lp = dev_get_drvdata(dev); - return scnprintf(buf, BUF_SIZE, "%s\n", lp->chipname); + return scnprintf(buf, PAGE_SIZE, "%s\n", lp->chipname); } static ssize_t lp855x_get_bl_ctl_mode(struct device *dev, @@ -319,7 +318,7 @@ static ssize_t lp855x_get_bl_ctl_mode(struct device *dev, else if (mode == REGISTER_BASED) strmode = "register based"; - return scnprintf(buf, BUF_SIZE, "%s\n", strmode); + return scnprintf(buf, PAGE_SIZE, "%s\n", strmode); } static DEVICE_ATTR(chip_id, S_IRUGO, lp855x_get_chip_id, NULL); |