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path: root/drivers/hid/hid-input.c
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Diffstat (limited to 'drivers/hid/hid-input.c')
-rw-r--r--drivers/hid/hid-input.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 308eee8fc7c3..b420f4a0fd28 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -340,7 +340,7 @@ static int hidinput_get_battery_property(struct power_supply *psy,
{
struct hid_device *dev = container_of(psy, struct hid_device, battery);
int ret = 0;
- __u8 buf[2] = {};
+ __u8 *buf;
switch (prop) {
case POWER_SUPPLY_PROP_PRESENT:
@@ -349,12 +349,19 @@ static int hidinput_get_battery_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_CAPACITY:
+
+ buf = kmalloc(2 * sizeof(__u8), GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ break;
+ }
ret = dev->hid_get_raw_report(dev, dev->battery_report_id,
- buf, sizeof(buf),
+ buf, 2,
dev->battery_report_type);
if (ret != 2) {
ret = -ENODATA;
+ kfree(buf);
break;
}
ret = 0;
@@ -364,6 +371,7 @@ static int hidinput_get_battery_property(struct power_supply *psy,
buf[1] <= dev->battery_max)
val->intval = (100 * (buf[1] - dev->battery_min)) /
(dev->battery_max - dev->battery_min);
+ kfree(buf);
break;
case POWER_SUPPLY_PROP_MODEL_NAME: