The patch titled
Subject: drivers/video/backlight/lp855x_bl.c: use PAGE_SIZE for the sysfs read operation
has been added to the -mm tree. Its filename is
backlight-lp855x-use-page_size-for-the-sysfs-read-operation.patch
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------------------------------------------------------
From: "Kim, Milo" <Milo.Kim@xxxxxx>
Subject: 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@xxxxxx>
Acked-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/backlight/lp855x_bl.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff -puN drivers/video/backlight/lp855x_bl.c~backlight-lp855x-use-page_size-for-the-sysfs-read-operation drivers/video/backlight/lp855x_bl.c
--- a/drivers/video/backlight/lp855x_bl.c~backlight-lp855x-use-page_size-for-the-sysfs-read-operation
+++ a/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
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(st
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);
_
Patches currently in -mm which might be from Milo.Kim@xxxxxx are
linux-next.patch
backlight-lp855x-use-page_size-for-the-sysfs-read-operation.patch
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