HID: pidff: fix error return code in hid_pidff_init()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 224ee88f ("Input: add force feedback driver for PID devices")
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NZhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

drivers/hid/usbhid/hid-pidff.c

@@ -1292,6 +1292,7 @@ int hid_pidff_init(struct hid_device *hid)
 
 	if (pidff->pool[PID_DEVICE_MANAGED_POOL].value &&
 	    pidff->pool[PID_DEVICE_MANAGED_POOL].value[0] == 0) {
+		error = -EPERM;
 		hid_notice(hid,
 			   "device does not support device managed pool\n");
 		goto fail;