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The aq_nic_start function can fail in a variety of cases which leaves the device in broken state. An example case where the start function fails is the request_threaded_irq which can be interrupted, resulting in a EINTR result. This can be manually triggered by bringing the link up (e.g. ip link set up) and triggering a SIGINT on the initiating process (e.g. Ctrl+C). This would put the device into a half configured state. Subsequently bringing the link up again would cause the napi_enable to BUG. In order to correctly clean up the failed attempt to start a device call aq_nic_stop. Signed-off-by: Nathan Rossi <nathan.rossi@digi.com> Reviewed-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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