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liquidio: do not dereference pointer if it's NULL

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Fix smatch errors by not dereferencing iq pointer if it's NULL.

See http://marc.info/?l=kernel-janitors&m=148637299004834&w=2

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Felix Manlunas 2017-02-07 12:10:58 -08:00 committed by David S. Miller
parent ca6d4480f8
commit 76e0e70e64
2 changed files with 2 additions and 2 deletions
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2
drivers/net/ethernet/cavium/liquidio/lio_main.c
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@ -2447,7 +2447,7 @@ static int liquidio_napi_poll(struct napi_struct *napi, int budget)
/* force enable interrupt if reg cnts are high to avoid wraparound */
if ((work_done < budget && tx_done) ||
(iq->pkt_in_done >= MAX_REG_CNT) ||
(iq && iq->pkt_in_done >= MAX_REG_CNT) ||
(droq->pkt_count >= MAX_REG_CNT)) {
tx_done = 1;
napi_complete_done(napi, work_done);

2
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
View File

@ -1632,7 +1632,7 @@ static int liquidio_napi_poll(struct napi_struct *napi, int budget)
/* force enable interrupt if reg cnts are high to avoid wraparound */
if ((work_done < budget && tx_done) ||
(iq->pkt_in_done >= MAX_REG_CNT) ||
(iq && iq->pkt_in_done >= MAX_REG_CNT) ||
(droq->pkt_count >= MAX_REG_CNT)) {
tx_done = 1;
napi_complete_done(napi, work_done);