nfp: fix NULL pointer access when scheduling dim work

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Each rx/tx ring has a related dim work, when rx/tx ring number is
decreased by `ethtool -L`, the corresponding rx_ring or tx_ring is
assigned NULL, while its related work is not destroyed. When scheduled,
the work will access NULL pointer.

Fixes: 9d32e4e7e9 ("nfp: add support for coalesce adaptive feature")
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Yinjun Zhang 2021-10-29 13:29:02 +02:00 • committed by David S. Miller

parent e300a85db1

commit f8d384a640

1 changed files with 2 additions and 2 deletions

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drivers/net/ethernet/netronome/nfp/nfp_net_common.c

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