diff options
Diffstat (limited to 'drivers/net/wireless/ralink/rt2x00/rt2x00usb.c')
| -rw-r--r-- | drivers/net/wireless/ralink/rt2x00/rt2x00usb.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c b/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c index 086aad22743d..67b81c7221c4 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c @@ -1,20 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* Copyright (C) 2010 Willow Garage <http://www.willowgarage.com> Copyright (C) 2004 - 2010 Ivo van Doorn <IvDoorn@gmail.com> <http://rt2x00.serialmonkey.com> - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, see <http://www.gnu.org/licenses/>. */ /* @@ -31,6 +20,22 @@ #include "rt2x00.h" #include "rt2x00usb.h" +static bool rt2x00usb_check_usb_error(struct rt2x00_dev *rt2x00dev, int status) +{ + if (status == -ENODEV || status == -ENOENT) + return true; + + if (status == -EPROTO || status == -ETIMEDOUT) + rt2x00dev->num_proto_errs++; + else + rt2x00dev->num_proto_errs = 0; + + if (rt2x00dev->num_proto_errs > 3) + return true; + + return false; +} + /* * Interfacing with the HW. */ @@ -57,7 +62,7 @@ int rt2x00usb_vendor_request(struct rt2x00_dev *rt2x00dev, if (status >= 0) return 0; - if (status == -ENODEV || status == -ENOENT) { + if (rt2x00usb_check_usb_error(rt2x00dev, status)) { /* Device has disappeared. */ clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); break; @@ -321,7 +326,7 @@ static bool rt2x00usb_kick_tx_entry(struct queue_entry *entry, void *data) status = usb_submit_urb(entry_priv->urb, GFP_ATOMIC); if (status) { - if (status == -ENODEV || status == -ENOENT) + if (rt2x00usb_check_usb_error(rt2x00dev, status)) clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); set_bit(ENTRY_DATA_IO_FAILED, &entry->flags); rt2x00lib_dmadone(entry); @@ -410,7 +415,7 @@ static bool rt2x00usb_kick_rx_entry(struct queue_entry *entry, void *data) status = usb_submit_urb(entry_priv->urb, GFP_ATOMIC); if (status) { - if (status == -ENODEV || status == -ENOENT) + if (rt2x00usb_check_usb_error(rt2x00dev, status)) clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); set_bit(ENTRY_DATA_IO_FAILED, &entry->flags); rt2x00lib_dmadone(entry); |