scsi: qla2xxx: Fix abort command deadlock due to spinlock

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commit b0dcce746b upstream.

Original code acquires hardware_lock to add Abort IOCB onto driver
request queue for processing. However, abort_command() will also acquire
hardware lock to look up sp pointer before issuing abort IOCB command
resulting into a deadlock. This patch safely removes the possible
deadlock scenario by removing extra spinlock.

Fixes: 6eb54715b5 ("qla2xxx: Added interface to send explicit LOGO.")
Cc: <stable@vger.kernel.org> # 4.10+
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Quinn Tran 2017-12-04 14:45:09 -08:00 • committed by Greg Kroah-Hartman

parent 4929c45233

commit 11739154e6

1 changed files with 0 additions and 3 deletions

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drivers/scsi/qla2xxx/qla_iocb.c

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