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Commit 6a7aeb1a authored by Kim, Milo's avatar Kim, Milo Committed by Linus Torvalds
Browse files

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: default avatarMilo(Woogyom) Kim <milo.kim@ti.com>
Acked-by: default avatarJingoo Han <jg1.han@samsung.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d1720b57

drivers/video/backlight/lp855x_bl.c

+2 −3
Original line number Diff line number Diff line
@@ -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);