redonkable/alistair23-linux
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scsi: qla2xxx: Don't call dma_free_coherent with IRQ disabled.

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The logo ELS command allocates dma coherent memory for the
data payload and serialize the completions. When this command
times out, the timeout routine completes the thread waiting
for completion which in turn cleanup resources allocated for
this ELS command processing. Don't call generic sp->free
routine when this ELS command times out to avoid to double
freeing of the same resources.

Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Giridhar Malavali 2017-12-28 12:33:21 -08:00 committed by Martin K. Petersen
parent 11aea16ab3
commit 045d6ea200
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/qla2xxx/qla_init.c
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@ -59,7 +59,8 @@ qla2x00_sp_timeout(struct timer_list *t)
req->outstanding_cmds[sp->handle] = NULL;
iocb = &sp->u.iocb_cmd;
iocb->timeout(sp);
sp->free(sp);
if (sp->type != SRB_ELS_DCMD)
sp->free(sp);
spin_unlock_irqrestore(&vha->hw->hardware_lock, flags);
}