From: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Date: Fri, 13 Sep 2019 09:04:43 -0400
Subject: [PATCH] scsi: mpt3sas: clear release bit when buffer reregistered
Git-commit: dd180e4eedfd85b80020a6fd566601f4765a9d69
Patch-mainline: v5.5-rc1
References: bsc#1156632,jsc#SLE-10717
Clear MPT3_DIAG_BUFFER_IS_RELEASED bit once diag buffer is re-registered
after reading the buffer, else driver won't release the buffer and return
the 'diag release' command with -EINVAL status saying that buffer is
already released.
Link: https://lore.kernel.org/r/1568379890-18347-7-git-send-email-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/scsi/mpt3sas/mpt3sas_ctl.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index a14ff88db54b..504e035a90c4 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -2367,6 +2367,8 @@ _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
ioc->diag_buffer_status[buffer_type] |=
MPT3_DIAG_BUFFER_IS_REGISTERED;
+ ioc->diag_buffer_status[buffer_type] &=
+ ~MPT3_DIAG_BUFFER_IS_RELEASED;
dctlprintk(ioc, ioc_info(ioc, "%s: success\n", __func__));
} else {
ioc_info(ioc, "%s: ioc_status(0x%04x) log_info(0x%08x)\n",
--
2.16.4