[PATCH net-next] liquidio: do not dereference pointer if it's NULL
From: Felix Manlunas <hidden>
Date: 2017-02-07 20:49:19
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 <redacted> Signed-off-by: Felix Manlunas <redacted> --- drivers/net/ethernet/cavium/liquidio/lio_main.c | 2 +- drivers/net/ethernet/cavium/liquidio/lio_vf_main.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index c12cfa4..a3c7b99 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c@@ -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);
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
index 631f1c0f..0536cb9 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c@@ -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);