libertas: improve reliability of firmware reloading on USB

Increase the delay between issuing the RESET command and the usb reset,
and be prepared to discard more than one 'normal' packet from it before
it resets.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/if_usb.c

@@ -389,9 +389,9 @@ static int if_usb_reset_device(struct usb_card_rec *cardp)
 	cmd->params.reset.action = cpu_to_le16(CMD_ACT_HALT);
 	usb_tx_block(cardp, cardp->bulk_out_buffer, 4 + S_DS_GEN + sizeof(struct cmd_ds_802_11_reset));
 
-	msleep(10);
+	msleep(100);
 	ret = usb_reset_device(cardp->udev);
-	msleep(10);
+	msleep(100);
 
 	lbs_deb_leave_args(LBS_DEB_USB, "ret %d", ret);
 
@@ -500,7 +500,7 @@ static void if_usb_receive_fwload(struct urb *urb)
 		return;
 	}
 
-	if (cardp->bootcmdresp == 0) {
+	if (cardp->bootcmdresp <= 0) {
 		memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
 			sizeof(bootcmdresp));
 		if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) {