From patchwork Sat Jun 8 19:22:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajit Khaparde X-Patchwork-Id: 54564 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 668A61BD0F; Sat, 8 Jun 2019 21:22:28 +0200 (CEST) Received: from rnd-relay.smtp.broadcom.com (rnd-relay.smtp.broadcom.com [192.19.229.170]) by dpdk.org (Postfix) with ESMTP id 8D9531BCE1 for ; Sat, 8 Jun 2019 21:22:24 +0200 (CEST) Received: from nis-sj1-27.broadcom.com (nis-sj1-27.lvn.broadcom.net [10.75.144.136]) by rnd-relay.smtp.broadcom.com (Postfix) with ESMTP id A3D2B30C092; Sat, 8 Jun 2019 12:22:22 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.10.3 rnd-relay.smtp.broadcom.com A3D2B30C092 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1560021742; bh=CYvpecMB/CVgWnXBjeStjQ9yoGeurxw6eoQiU7kaji4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GmAdYNiOnFaU9D1a1y8Ab1QKiCgb1CSvomoJtck/WPiumFjbFpk5OnxdJ1lyDaw4U QTGoKDYXHDxGymXC50JvuywHoMGwLotnZV15C/nQ2Dl/u+V57N/FhQUNZob3qVC/yc MSGenwZ5TTiunR9IWA2cRtQH3Va4bL2Lt6BudE6A= Received: from localhost.localdomain (unknown [10.230.18.249]) by nis-sj1-27.broadcom.com (Postfix) with ESMTP id 75A90AC0737; Sat, 8 Jun 2019 12:22:21 -0700 (PDT) From: Ajit Khaparde To: dev@dpdk.org Cc: ferruh.yigit@intel.com, Somnath Kotur , Kalesh AP Date: Sat, 8 Jun 2019 23:22:04 +0400 Message-Id: <20190608192208.77607-3-ajit.khaparde@broadcom.com> X-Mailer: git-send-email 2.20.1 (Apple Git-117) In-Reply-To: <20190608192208.77607-1-ajit.khaparde@broadcom.com> References: <20190608192208.77607-1-ajit.khaparde@broadcom.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH 2/6] net/bnxt: fix to check for NULL completion ring doorbell in int_handler X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Somnath Kotur 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 Signed-off-by: Kalesh AP Signed-off-by: Ajit Khaparde --- 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);