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Message-Id: <20210712060743.040504178@linuxfoundation.org>
Date:   Mon, 12 Jul 2021 08:11:21 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Eddie James <eajames@...ux.ibm.com>,
        Joel Stanley <joel@....id.au>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 297/348] fsi: occ: Dont accept response from un-initialized OCC

From: Eddie James <eajames@...ux.ibm.com>

[ Upstream commit 8a4659be08576141f47d47d94130eb148cb5f0df ]

If the OCC is not initialized and responds as such, the driver
should continue waiting for a valid response until the timeout
expires.

Signed-off-by: Eddie James <eajames@...ux.ibm.com>
Reviewed-by: Joel Stanley <joel@....id.au>
Fixes: 7ed98dddb764 ("fsi: Add On-Chip Controller (OCC) driver")
Link: https://lore.kernel.org/r/20210209171235.20624-2-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@....id.au>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/fsi/fsi-occ.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/fsi/fsi-occ.c b/drivers/fsi/fsi-occ.c
index 7da9c81759ac..8f1644804570 100644
--- a/drivers/fsi/fsi-occ.c
+++ b/drivers/fsi/fsi-occ.c
@@ -445,6 +445,7 @@ int fsi_occ_submit(struct device *dev, const void *request, size_t req_len,
 			goto done;
 
 		if (resp->return_status == OCC_RESP_CMD_IN_PRG ||
+		    resp->return_status == OCC_RESP_CRIT_INIT ||
 		    resp->seq_no != seq_no) {
 			rc = -ETIMEDOUT;
 
-- 
2.30.2



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