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| author | David S. Miller <davem@davemloft.net> | 2015-02-05 00:29:14 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-02-05 00:29:14 -0800 |
| commit | adfde05166174ef1c4733dd7cfd4dc2b5f710ac8 (patch) | |
| tree | 055c58ba9b8e8d1b29e482f599286be125202df2 /drivers/net | |
| parent | f86b4ae6ac772f8177bfdd460ea43c319ca3f92d (diff) | |
| parent | a9ca6e13d66042b3ac18d1352b88b7cd0da8fc21 (diff) | |
| download | linux-adfde05166174ef1c4733dd7cfd4dc2b5f710ac8.tar.bz2 | |
Merge tag 'linux-can-next-for-3.20-20150204' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2015-02-04
this is a pull request of 2 patches for net-next/master.
Nicholas Mc Guire contributes a patch for the janz-ican3 driver to fix
a mismatch in an assignment. Ahmed S. Darwish contributes a patch for
the kvaser_usb driver, to make the driver more robust during the
bus-off handling.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/can/janz-ican3.c | 6 | ||||
| -rw-r--r-- | drivers/net/can/usb/kvaser_usb.c | 19 |
2 files changed, 12 insertions, 13 deletions
diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 0eb4d181ae4d..4dd183a3643a 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -1679,8 +1679,7 @@ static int ican3_get_berr_counter(const struct net_device *ndev, if (ret) return ret; - ret = wait_for_completion_timeout(&mod->buserror_comp, HZ); - if (ret == 0) { + if (!wait_for_completion_timeout(&mod->buserror_comp, HZ)) { netdev_info(mod->ndev, "%s timed out\n", __func__); return -ETIMEDOUT; } @@ -1705,8 +1704,7 @@ static ssize_t ican3_sysfs_show_term(struct device *dev, if (ret) return ret; - ret = wait_for_completion_timeout(&mod->termination_comp, HZ); - if (ret == 0) { + if (!wait_for_completion_timeout(&mod->termination_comp, HZ)) { netdev_info(mod->ndev, "%s timed out\n", __func__); return -ETIMEDOUT; } diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c index 17d28d7dd412..2928f7003041 100644 --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -11,7 +11,7 @@ * Copyright (C) 2002-2006 KVASER AB, Sweden. All rights reserved. * Copyright (C) 2010 Matthias Fuchs <matthias.fuchs@esd.eu>, esd gmbh * Copyright (C) 2012 Olivier Sobrie <olivier@sobrie.be> - * Copyright (C) 2015 Valeo A.S. + * Copyright (C) 2015 Valeo S.A. */ #include <linux/completion.h> @@ -824,14 +824,15 @@ static void kvaser_usb_rx_error_update_can_state(struct kvaser_usb_net_priv *pri else if (es->status & M16C_STATE_BUS_PASSIVE) new_state = CAN_STATE_ERROR_PASSIVE; else if (es->status & M16C_STATE_BUS_ERROR) { - if ((es->txerr >= 256) || (es->rxerr >= 256)) - new_state = CAN_STATE_BUS_OFF; - else if ((es->txerr >= 128) || (es->rxerr >= 128)) - new_state = CAN_STATE_ERROR_PASSIVE; - else if ((es->txerr >= 96) || (es->rxerr >= 96)) - new_state = CAN_STATE_ERROR_WARNING; - else if (cur_state > CAN_STATE_ERROR_ACTIVE) - new_state = CAN_STATE_ERROR_ACTIVE; + /* Guard against spurious error events after a busoff */ + if (cur_state < CAN_STATE_BUS_OFF) { + if ((es->txerr >= 128) || (es->rxerr >= 128)) + new_state = CAN_STATE_ERROR_PASSIVE; + else if ((es->txerr >= 96) || (es->rxerr >= 96)) + new_state = CAN_STATE_ERROR_WARNING; + else if (cur_state > CAN_STATE_ERROR_ACTIVE) + new_state = CAN_STATE_ERROR_ACTIVE; + } } if (!es->status) |