[PATCH 5.4 393/475] scsi: pm8001: Fix pm8001_mpi_task_abort_resp()

From: Greg Kroah-Hartman
Date: Thu Apr 14 2022 - 11:20:58 EST


From: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>

[ Upstream commit 7e6b7e740addcea450041b5be8e42f0a4ceece0f ]

The call to pm8001_ccb_task_free() at the end of
pm8001_mpi_task_abort_resp() already frees the ccb tag. So when the device
NCQ_ABORT_ALL_FLAG is set, the tag should not be freed again. Also change
the hardcoded 0xBFFFFFFF value to ~NCQ_ABORT_ALL_FLAG as it ought to be.

Link: https://lore.kernel.org/r/20220220031810.738362-19-damien.lemoal@xxxxxxxxxxxxxxxxxx
Reviewed-by: Jack Wang <jinpu.wang@xxxxxxxxx>
Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/scsi/pm8001/pm8001_hwi.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index fe5d996bf069..fec653b54307 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -3775,12 +3775,11 @@ int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
mb();

if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
- pm8001_tag_free(pm8001_ha, tag);
sas_free_task(t);
- /* clear the flag */
- pm8001_dev->id &= 0xBFFFFFFF;
- } else
+ pm8001_dev->id &= ~NCQ_ABORT_ALL_FLAG;
+ } else {
t->task_done(t);
+ }

return 0;
}
--
2.35.1