提交 29ff6657 编写于 作者: S Simon Wood 提交者: Jiri Kosina

HID: logitech: Prevent possibility of infinite loop when using /sys interface

If the device data is not accessible for some reason, returning 0 will cause the call to be
continuously called again as none of the string has been 'consumed'.
Signed-off-by: NSimon Wood <simon@mungewell.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
上级 daebdd7e
......@@ -451,13 +451,13 @@ static ssize_t lg4ff_range_store(struct device *dev, struct device_attribute *at
drv_data = hid_get_drvdata(hid);
if (!drv_data) {
hid_err(hid, "Private driver data not found!\n");
return 0;
return -EINVAL;
}
entry = drv_data->device_props;
if (!entry) {
hid_err(hid, "Device properties not found!\n");
return 0;
return -EINVAL;
}
if (range == 0)
......
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