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Subject[PATCH AUTOSEL 5.11 04/52] scsi: pm80xx: Fix missing tag_free in NVMD DATA req
Date
From: akshatzen <akshatzen@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-Viswas.G@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: akshatzen <akshatzen@google.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com>
Signed-off-by: Radha Ramachandran <radha@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@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 c8d4d87c5473..fc721d616f43 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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