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linux/drivers/scsi/megaraid
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Anand Lodnoor 0fd8ed1f3f scsi: megaraid_sas: Do not initiate OCR if controller is not in ready state 
commit 6d7537270e upstream.

Driver initiates OCR if a DCMD command times out. But there is a deadlock
if the driver attempts to invoke another OCR before the mutex lock
(reset_mutex) is released from the previous session of OCR.

This patch takes care of the above scenario using new flag
MEGASAS_FUSION_OCR_NOT_POSSIBLE to indicate if OCR is possible.

Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1579000882-20246-9-git-send-email-anand.lodnoor@broadcom.com
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2020-02-11 04:36:54 -08:00
..
Kconfig.megaraid SCSI misc on 20190709 2019-07-11 15:14:01 -07:00
Makefile scsi: megaraid_sas: Export RAID map through debugfs 2019-06-18 19:46:20 -04:00
mbox_defs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mega_common.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
megaraid_ioctl.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
megaraid_mbox.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
megaraid_mbox.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
megaraid_mm.c compat_ioctl: use correct compat_ptr() translation in drivers 2019-10-23 17:23:44 +02:00
megaraid_mm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
megaraid_sas.h scsi: megaraid_sas: Unique names for MSI-X vectors 2019-10-09 23:23:15 -04:00
megaraid_sas_base.c scsi: megaraid_sas: Do not initiate OCR if controller is not in ready state 2020-02-11 04:36:54 -08:00
megaraid_sas_debugfs.c scsi: megaraid_sas: Remove unused including <linux/version.h> 2019-06-18 19:46:25 -04:00
megaraid_sas_fp.c scsi: megaraid_sas: remove unused variables 'debugBlk','fusion' 2019-10-09 23:33:14 -04:00
megaraid_sas_fusion.c scsi: megaraid_sas: Do not initiate OCR if controller is not in ready state 2020-02-11 04:36:54 -08:00
megaraid_sas_fusion.h scsi: megaraid_sas: Do not initiate OCR if controller is not in ready state 2020-02-11 04:36:54 -08:00