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(parent: cad54f4) | patch
nfp: fix infinite loop on umapping cleanup
authorColin Ian King <colin.king@canonical.com>
Fri, 18 Aug 2017 11:11:50 +0000 (12:11 +0100)
committerDavid S. Miller <davem@davemloft.net>
Fri, 18 Aug 2017 17:28:06 +0000 (10:28 -0700)
commit64f6042669705ce2de1538c6e92605af8fbd5651
treefcd5bc7f3dd1f73d6f767626de623b55eaf8cd36tree | snapshot
parentcad54f4d4d87b164d2851e754595d414cf592abacommit | diff
nfp: fix infinite loop on umapping cleanup

The while loop that performs the dma page unmapping never decrements
index counter f and hence loops forever. Fix this with a pre-decrement
on f.

Detected by CoverityScan, CID#1357309 ("Infinite loop")

Fixes: 8137d42c8aad ("net: add driver for Netronome NFP4000/NFP6000 NIC VFs")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/netronome/nfp/nfp_net_common.c diff | blob | history
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