Commit cc9ac8c5 authored by Oliver Neukum's avatar Oliver Neukum Committed by Kamal Mostafa

usb: hub: fix a typo in hub_port_init() leading to wrong logic

commit 0d5ce778 upstream.

A typo of j for i led to a logic bug. To rule out future
confusion, the variable names are made meaningful.
Signed-off-by: default avatarOliver Neukum <ONeukum@suse.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarKamal Mostafa <kamal@canonical.com>
parent 820fe163
......@@ -4243,7 +4243,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
{
struct usb_device *hdev = hub->hdev;
struct usb_hcd *hcd = bus_to_hcd(hdev->bus);
int i, j, retval;
int retries, operations, retval, i;
unsigned delay = HUB_SHORT_RESET_TIME;
enum usb_device_speed oldspeed = udev->speed;
const char *speed;
......@@ -4345,7 +4345,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
* first 8 bytes of the device descriptor to get the ep0 maxpacket
* value.
*/
for (i = 0; i < GET_DESCRIPTOR_TRIES; (++i, msleep(100))) {
for (retries = 0; retries < GET_DESCRIPTOR_TRIES; (++retries, msleep(100))) {
bool did_new_scheme = false;
if (use_new_scheme(udev, retry_counter)) {
......@@ -4372,7 +4372,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
* 255 is for WUSB devices, we actually need to use
* 512 (WUSB1.0[4.8.1]).
*/
for (j = 0; j < 3; ++j) {
for (operations = 0; operations < 3; ++operations) {
buf->bMaxPacketSize0 = 0;
r = usb_control_msg(udev, usb_rcvaddr0pipe(),
USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
......@@ -4398,7 +4398,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
* reset. But only on the first attempt,
* lest we get into a time out/reset loop
*/
if (r == 0 || (r == -ETIMEDOUT && j == 0))
if (r == 0 || (r == -ETIMEDOUT && retries == 0))
break;
}
udev->descriptor.bMaxPacketSize0 =
......@@ -4430,7 +4430,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
* authorization will assign the final address.
*/
if (udev->wusb == 0) {
for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
for (operations = 0; operations < SET_ADDRESS_TRIES; ++operations) {
retval = hub_set_address(udev, devnum);
if (retval >= 0)
break;
......
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