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path: root/drivers/net/can/dev.c
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Diffstat (limited to 'drivers/net/can/dev.c')
-rw-r--r--drivers/net/can/dev.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 574daddc21bf..9e4283aff828 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -346,7 +346,7 @@ void can_restart(unsigned long data)
skb = dev_alloc_skb(sizeof(struct can_frame));
if (skb == NULL) {
err = -ENOMEM;
- goto out;
+ goto restart;
}
skb->dev = dev;
skb->protocol = htons(ETH_P_CAN);
@@ -361,13 +361,13 @@ void can_restart(unsigned long data)
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
+restart:
dev_dbg(dev->dev.parent, "restarted\n");
priv->can_stats.restarts++;
/* Now restart the device */
err = priv->do_set_mode(dev, CAN_MODE_START);
-out:
netif_carrier_on(dev);
if (err)
dev_err(dev->dev.parent, "Error %d during restart", err);
@@ -473,6 +473,10 @@ int open_candev(struct net_device *dev)
return -EINVAL;
}
+ /* Switch carrier on if device was stopped while in bus-off state */
+ if (!netif_carrier_ok(dev))
+ netif_carrier_on(dev);
+
setup_timer(&priv->restart_timer, can_restart, (unsigned long)dev);
return 0;