From: Wolfgang Grandegger Date: Mon, 20 Jul 2009 04:06:40 +0000 (+0000) Subject: can: restart device even if dev_alloc_skb() fails X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b3d0df7ca35018ebbc24fd102ed7021cf593ba74;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git can: restart device even if dev_alloc_skb() fails If dev_alloc_skb() failed in can_restart(), the device was left behind in the bus-off state. This patch restarts the device nevertheless. Signed-off-by: Kurt Van Dijck Signed-off-by: Wolfgang Grandegger Signed-off-by: David S. Miller --- diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 574daddc21bf..06083c32869a 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);