summaryrefslogtreecommitdiff
path: root/drivers/leds/leds-lp55xx-common.c
diff options
context:
space:
mode:
authorKim, Milo <Milo.Kim@ti.com>2013-03-15 04:19:36 +0400
committerBryan Wu <cooloney@gmail.com>2013-04-01 22:04:50 +0400
commit24d321284745cbc593fba8115585329d48703704 (patch)
treee8c266b2b30024980e353ee26086318e02c73f22 /drivers/leds/leds-lp55xx-common.c
parent313bf0b1a0eaeaac17ea8c4b748f16e28fce8b7a (diff)
downloadlinux-24d321284745cbc593fba8115585329d48703704.tar.xz
leds: lp55xx: fix the sysfs read operation
According to a sysfs documentation(Documentation/filesystem/sysfs.txt), scnprintf() should be used in a read operation method. It guarantees safe buffer size(PAGE_SIZE) which is allocated by the sysfs. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'drivers/leds/leds-lp55xx-common.c')
-rw-r--r--drivers/leds/leds-lp55xx-common.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 8a388a4afed7..715a6027316f 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -80,7 +80,7 @@ static ssize_t lp55xx_show_current(struct device *dev,
{
struct lp55xx_led *led = dev_to_lp55xx_led(dev);
- return sprintf(buf, "%d\n", led->led_current);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", led->led_current);
}
static ssize_t lp55xx_store_current(struct device *dev,
@@ -113,7 +113,7 @@ static ssize_t lp55xx_show_max_current(struct device *dev,
{
struct lp55xx_led *led = dev_to_lp55xx_led(dev);
- return sprintf(buf, "%d\n", led->max_current);
+ return scnprintf(buf, PAGE_SIZE, "%d\n", led->max_current);
}
static DEVICE_ATTR(led_current, S_IRUGO | S_IWUSR, lp55xx_show_current,