[dpdk-dev] [PATCH 2/6] net/bnxt: fix to check for NULL completion ring doorbell in int_handler

[Ajit Khaparde]

From: Somnath Kotur <somnath.ko...@broadcom.com>

It is observed that sometimes during init, the bnxt_int_handler() gets
invoked while the cpr->cp_db.doorbell is not yet initialized. Check for
the same and return.

Signed-off-by: Somnath Kotur <somnath.ko...@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.pura...@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khapa...@broadcom.com>
---
 drivers/net/bnxt/bnxt_irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt_irq.c b/drivers/net/bnxt/bnxt_irq.c
index 918f3dcf4..e1b9a2b04 100644
--- a/drivers/net/bnxt/bnxt_irq.c
+++ b/drivers/net/bnxt/bnxt_irq.c
@@ -31,7 +31,7 @@ static void bnxt_int_handler(void *param)
 
        raw_cons = cpr->cp_raw_cons;
        while (1) {
-               if (!cpr || !cpr->cp_ring_struct)
+               if (!cpr || !cpr->cp_ring_struct || !cpr->cp_db.cp_doorbell)
                        return;
 
                cons = RING_CMP(cpr->cp_ring_struct, raw_cons);
-- 
2.20.1 (Apple Git-117)