lkml.org 
[lkml]   [2022]   [Apr]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 1/2] fsi: occ: Fix checksum failure mode
Date
Change the checksum errno to something different than the errno
used for a bad SBE message. In addition, don't set the user's
response length to the data length in this case, since it's not
SBE FFDC.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
---
drivers/fsi/fsi-occ.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/fsi/fsi-occ.c b/drivers/fsi/fsi-occ.c
index c9cc75fbdfb9..3d04e8baecbb 100644
--- a/drivers/fsi/fsi-occ.c
+++ b/drivers/fsi/fsi-occ.c
@@ -246,7 +246,7 @@ static int occ_verify_checksum(struct occ *occ, struct occ_response *resp,
if (checksum != checksum_resp) {
dev_err(occ->dev, "Bad checksum: %04x!=%04x\n", checksum,
checksum_resp);
- return -EBADMSG;
+ return -EBADE;
}

return 0;
@@ -575,8 +575,11 @@ int fsi_occ_submit(struct device *dev, const void *request, size_t req_len,
dev_dbg(dev, "resp_status=%02x resp_data_len=%d\n",
resp->return_status, resp_data_length);

- occ->client_response_size = resp_data_length + 7;
rc = occ_verify_checksum(occ, resp, resp_data_length);
+ if (rc)
+ goto done;
+
+ occ->client_response_size = resp_data_length + 7;

done:
*resp_len = occ->client_response_size;
--
2.27.0
\
 
 \ /
  Last update: 2022-04-26 17:52    [W:0.045 / U:0.932 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site