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7ee11fa8d0
a) fwnet_transmit_packet_done used to poison ptask->pt_link by list_del. If fwnet_send_packet checked later whether it was responsible to clean up (in the border case that the TX soft IRQ was outpaced by the AT-req tasklet on another CPU), it missed this because ptask->pt_link was no longer shown as empty. b) If fwnet_write_complete got an rcode other than RCODE_COMPLETE, we missed to free the skb and ptask entirely. Also, count stats.tx_dropped and stats.tx_errors when rcode != 0. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>