From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: Fri, 21 Jul 2017 03:22:32 +0000 (-0500)
Subject: net/bnxt: check invalid L2 filter id
X-Git-Tag: spdx-start~2311
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=778f6209bc3b39339f2969a57ffb46f2cd396f15;p=dpdk.git

net/bnxt: check invalid L2 filter id

Add code to check for invalid filter_id in bnxt_hwrm_clear_filter

Fixes: f92735db1e4c ("net/bnxt: add L2 filter alloc/init/free")
Cc: stable@dpdk.org

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index a82cc819f7..e230b468ee 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -327,6 +327,9 @@ int bnxt_hwrm_clear_filter(struct bnxt *bp,
 	struct hwrm_cfa_l2_filter_free_input req = {.req_type = 0 };
 	struct hwrm_cfa_l2_filter_free_output *resp = bp->hwrm_cmd_resp_addr;
 
+	if (filter->fw_l2_filter_id == UINT64_MAX)
+		return 0;
+
 	HWRM_PREP(req, CFA_L2_FILTER_FREE, -1, resp);
 
 	req.l2_filter_id = rte_cpu_to_le_64(filter->fw_l2_filter_id);