nfp: prevent theoretical buffer overrun in nfp_eth_read_ports

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Prevent theoretical buffer overrun by returning an error if
the number of entries returned by the firmware does not match those
present.

Also use a common handling error path.

Found by inspection.

Signed-off-by: Simon Horman <simon.horman@netronome.com>
Tested-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Simon Horman 2017-03-08 08:57:08 -08:00 • committed by David S. Miller

parent b9dcf88a47

commit 5692dbb56e

1 changed files with 20 additions and 14 deletions

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34

drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp_eth.c

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