From: Greg Kroah-Hartman <gre...@linuxfoundation.org>

From: akshatzen <akshat...@google.com>

[ Upstream commit 5d28026891c7041deec08cc5ddd8f3abd90195e1 ]

Tag was not freed in NVMD get/set data request failure scenario. This
caused a tag leak each time a request failed.

Link: https://lore.kernel.org/r/20210109123849.17098-5-viswa...@microchip.com
Acked-by: Jack Wang <jinpu.w...@cloud.ionos.com>
Signed-off-by: akshatzen <akshat...@google.com>
Signed-off-by: Viswas G <viswa...@microchip.com>
Signed-off-by: Ruksar Devadi <ruksar.dev...@microchip.com>
Signed-off-by: Radha Ramachandran <ra...@google.com>
Signed-off-by: Martin K. Petersen <martin.peter...@oracle.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index dd15246d5b03..ea43dff40a85 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -3038,8 +3038,8 @@ void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info 
*pm8001_ha, void *piomb)
        complete(pm8001_ha->nvmd_completion);
        pm8001_dbg(pm8001_ha, MSG, "Set nvm data complete!\n");
        if ((dlen_status & NVMD_STAT) != 0) {
-               pm8001_dbg(pm8001_ha, FAIL, "Set nvm data error!\n");
-               return;
+               pm8001_dbg(pm8001_ha, FAIL, "Set nvm data error %x\n",
+                               dlen_status);
        }
        ccb->task = NULL;
        ccb->ccb_tag = 0xFFFFFFFF;
@@ -3062,11 +3062,17 @@ pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info 
*pm8001_ha, void *piomb)
 
        pm8001_dbg(pm8001_ha, MSG, "Get nvm data complete!\n");
        if ((dlen_status & NVMD_STAT) != 0) {
-               pm8001_dbg(pm8001_ha, FAIL, "Get nvm data error!\n");
+               pm8001_dbg(pm8001_ha, FAIL, "Get nvm data error %x\n",
+                               dlen_status);
                complete(pm8001_ha->nvmd_completion);
+               /* We should free tag during failure also, the tag is not being
+                * freed by requesting path anywhere.
+                */
+               ccb->task = NULL;
+               ccb->ccb_tag = 0xFFFFFFFF;
+               pm8001_tag_free(pm8001_ha, tag);
                return;
        }
-
        if (ir_tds_bn_dps_das_nvm & IPMode) {
                /* indirect mode - IR bit set */
                pm8001_dbg(pm8001_ha, MSG, "Get NVMD success, IR=1\n");
-- 
2.30.1



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