scsi: mpt3sas: Fix a race condition in mpt3sas_base_hard_reset_handler()

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Since ioc->shost_recovery is set after ioc->reset_in_progress_mutex is
obtained, if concurrent resets are issued there is a short time during
which ioc->reset_in_progress_mutex is locked and ioc->shost_recovery ==
0. Avoid that this can cause trouble by unconditionally locking
ioc->shost_recovery.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Sathya Prakash <sathya.prakash@broadcom.com>
Cc: Chaitra P B <chaitra.basappa@broadcom.com>
Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Bart Van Assche 2018-06-15 14:41:59 -07:00 • committed by Martin K. Petersen

parent 91b7bdb2c0

commit 982ea6f9ff

2 changed files with 1 additions and 10 deletions

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10

drivers/scsi/mpt3sas/mpt3sas_base.c

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1

drivers/scsi/mpt3sas/mpt3sas_base.h

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