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[1/7] mpt3sas: Memset config_cmds.reply buffer with zeros

Message ID 1596096229-3341-2-git-send-email-suganath-prabu.subramani@broadcom.com (mailing list archive)
State Accepted
Headers show
Series mpt3sas: Enhancements and bug fixes | expand

Commit Message

Suganath Prabu S July 30, 2020, 8:03 a.m. UTC
Currently config_cmds.reply buffer is not memset to zero before
posting config page request message.
In some cases, for the current config request, the previous config
reply is getting processed and we will observe PageType mismatch
between request to reply buffer. It will be difficult to debug this
type of issue and it confuses by thinking that HBA Firmware itself
posted the wrong config reply.
So it is better to memset the config_cmds.reply buffer with zeros
before issuing the config request.

Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
---
 drivers/scsi/mpt3sas/mpt3sas_config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/scsi/mpt3sas/mpt3sas_config.c b/drivers/scsi/mpt3sas/mpt3sas_config.c
index 62ddf53..17c7abf 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_config.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_config.c
@@ -372,7 +372,7 @@  _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
 	}
 
 	r = 0;
-	memset(mpi_reply, 0, sizeof(Mpi2ConfigReply_t));
+	memset(ioc->config_cmds.reply, 0, sizeof(Mpi2ConfigReply_t));
 	ioc->config_cmds.status = MPT3_CMD_PENDING;
 	config_request = mpt3sas_base_get_msg_frame(ioc, smid);
 	ioc->config_cmds.smid = smid;