netdev - [PATCH net v2] qed: Handle management FW error

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Message-ID: <20210910083356.17046-1-smalin@marvell.com>
Date:   Fri, 10 Sep 2021 11:33:56 +0300
From:   Shai Malin <smalin@...vell.com>
To:     <netdev@...r.kernel.org>, <davem@...emloft.net>, <kuba@...nel.org>
CC:     <aelior@...vell.com>, <smalin@...vell.com>, <malin1024@...il.com>
Subject: [PATCH net v2] qed: Handle management FW error

Handle MFW (management FW) error response in order to avoid a crash
during recovery flows.

Changes from v1:
- Add "Fixes tag".

Fixes: tag 5e7ba042fd05 ("qed: Fix reading stale configuration information")
Signed-off-by: Ariel Elior <aelior@...vell.com>
Signed-off-by: Shai Malin <smalin@...vell.com>
---
 drivers/net/ethernet/qlogic/qed/qed_mcp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index 6e5a6cc97d0e..24cd41567775 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -3367,6 +3367,7 @@ qed_mcp_get_nvm_image_att(struct qed_hwfn *p_hwfn,
 			  struct qed_nvm_image_att *p_image_att)
 {
 	enum nvm_image_type type;
+	int rc;
 	u32 i;
 
 	/* Translate image_id into MFW definitions */
@@ -3395,7 +3396,10 @@ qed_mcp_get_nvm_image_att(struct qed_hwfn *p_hwfn,
 		return -EINVAL;
 	}
 
-	qed_mcp_nvm_info_populate(p_hwfn);
+	rc = qed_mcp_nvm_info_populate(p_hwfn);
+	if (rc)
+		return rc;
+
 	for (i = 0; i < p_hwfn->nvm_info.num_images; i++)
 		if (type == p_hwfn->nvm_info.image_att[i].image_type)
 			break;
-- 
2.22.0