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scsi: qla2xxx: Avoid double completion of abort command

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[ Upstream commit 3a9910d7b6 ]

qla2x00_tmf_sp_done() now deletes the timer that will run
qla2x00_tmf_iocb_timeout(), but doesn't check whether the timer already
expired.  Check the return value from del_timer() to avoid calling
complete() a second time.

Fixes: 4440e46d5d ("[SCSI] qla2xxx: Add IOCB Abort command asynchronous ...")
Fixes: 1514839b36 ("scsi: qla2xxx: Fix NULL pointer crash due to active ...")
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ben Hutchings 2018-03-20 21:05:48 +00:00 committed by Greg Kroah-Hartman
parent 651f11a83a
commit a972222a6a
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/qla2xxx/qla_init.c
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@ -1365,8 +1365,8 @@ qla24xx_abort_sp_done(void *ptr, int res)
srb_t *sp = ptr;
struct srb_iocb *abt = &sp->u.iocb_cmd;
del_timer(&sp->u.iocb_cmd.timer);
complete(&abt->u.abt.comp);
if (del_timer(&sp->u.iocb_cmd.timer))
complete(&abt->u.abt.comp);
}
int