[PATCH v2 11/15] net/bnxt: fix a potential null poiner dereference
From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: 2017-10-24 21:20:07
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Fixes: f7ecea911ec5 ("net/bnxt: fix interrupt handler")
Coverity issue: 195046
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
drivers/net/bnxt/bnxt_irq.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/net/bnxt/bnxt_irq.c b/drivers/net/bnxt/bnxt_irq.c
index 79a119623..49436cfd9 100644
--- a/drivers/net/bnxt/bnxt_irq.c
+++ b/drivers/net/bnxt/bnxt_irq.c@@ -50,10 +50,14 @@ static void bnxt_int_handler(void *param) struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param; struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private; struct bnxt_cp_ring_info *cpr = bp->def_cp_ring; - uint32_t raw_cons = cpr->cp_raw_cons; - uint32_t cons; struct cmpl_base *cmp; + uint32_t raw_cons; + uint32_t cons; + + if (cpr == NULL) + return; + raw_cons = cpr->cp_raw_cons; while (1) { if (!cpr || !cpr->cp_ring_struct) return;
--
2.13.5 (Apple Git-94)