From: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Date: Tue, 16 Mar 2021 05:41:25 +0000 (+0530)
Subject: net/bnxt: fix PCI write check
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=fcf953791c5c72a22741969071265b74d647c08f;p=dpdk.git

net/bnxt: fix PCI write check

CID 363716 (#1 of 1): Unchecked return value (CHECKED_RETURN)
check_return: Calling rte_pci_write_config without checking
return value (as is done elsewhere 46 out of 49 times).

Coverity issue: 363716
Fixes: be14720def9c ("net/bnxt: support FW reset")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
---

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 57a409c0b7..1997783a7d 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -3861,13 +3861,19 @@ static void bnxt_write_fw_reset_reg(struct bnxt *bp, uint32_t index)
 	uint32_t val = info->reset_reg_val[index];
 	uint32_t reg = info->reset_reg[index];
 	uint32_t type, offset;
+	int ret;
 
 	type = BNXT_FW_STATUS_REG_TYPE(reg);
 	offset = BNXT_FW_STATUS_REG_OFF(reg);
 
 	switch (type) {
 	case BNXT_FW_STATUS_REG_TYPE_CFG:
-		rte_pci_write_config(bp->pdev, &val, sizeof(val), offset);
+		ret = rte_pci_write_config(bp->pdev, &val, sizeof(val), offset);
+		if (ret < 0) {
+			PMD_DRV_LOG(ERR, "Failed to write %#x at PCI offset %#x",
+				    val, offset);
+			return;
+		}
 		break;
 	case BNXT_FW_STATUS_REG_TYPE_GRC:
 		offset = bnxt_map_reset_regs(bp, offset);