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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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