changed to scnprintf(buf, PAGE_SIZE, ... ) as suggested in sysfs.txt
for show functions
Signed-off-by: Paul A. Tessier <phernost@xxxxxxxxx>
Signed-Off-by: Ping Cheng <pingc@xxxxxxxxx>
Tested-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
---
v2: Move actual permission to patch one.
drivers/hid/wacom_sys.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 950a205..4a7b9c8 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -605,7 +605,8 @@ static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
{ \
struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
struct wacom *wacom = hid_get_drvdata(hdev); \
- return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \
+ return scnprintf(buf, PAGE_SIZE, "%d\n", \
+ wacom->led.select[SET_ID]); \
} \
static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \
wacom_led##SET_ID##_select_show, \
@@ -644,8 +645,15 @@ static ssize_t wacom_##name##_luminance_store(struct device *dev, \
return wacom_luminance_store(wacom, &wacom->led.field, \
buf, count); \
} \
+static ssize_t wacom_##name##_luminance_show(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ struct wacom *wacom = dev_get_drvdata(dev); \
+ return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \
+} \
static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \
- NULL, wacom_##name##_luminance_store)
+ wacom_##name##_luminance_show, \
+ wacom_##name##_luminance_store)
DEVICE_LUMINANCE_ATTR(status0, llv);
DEVICE_LUMINANCE_ATTR(status1, hlv);
--
1.9.1
--
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