AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/scsi/ufs
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Stanley Chu f51913eef2 scsi: ufs: skip shutdown if hba is not powered 
In some cases, hba may go through shutdown flow without successful
initialization and then make system hang.

For example, if ufshcd_change_power_mode() gets error and leads to
ufshcd_hba_exit() to release resources of the host, future shutdown flow
may hang the system since the host register will be accessed in unpowered
state.

To solve this issue, simply add checking to skip shutdown for above kind of
situation.

Link: https://lore.kernel.org/r/1568780438-28753-1-git-send-email-stanley.chu@mediatek.com
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Acked-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-23 23:09:42 -04:00
..
cdns-pltfrm.c scsi: ufs: Disable local LCC in .link_startup_notify() in Cadence UFS 2019-08-29 17:42:52 -04:00
Kconfig SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
Makefile scsi: ufs-mediatek: Add UFS support for Mediatek SoC chips 2019-03-19 16:56:21 -04:00
tc-dwc-g210-pci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
tc-dwc-g210-pltfrm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
tc-dwc-g210.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
tc-dwc-g210.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ufs_bsg.c scsi: ufs-bsg: complete ufs-bsg job only if no error 2019-06-26 22:42:24 -04:00
ufs_bsg.h scsi: ufs: Add a bsg endpoint that supports UPIUs 2018-10-10 23:09:46 -04:00
ufs_quirks.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
ufs-hisi.c scsi: ufs-hisi: use devm_platform_ioremap_resource() to simplify code 2019-09-07 16:43:05 -04:00
ufs-hisi.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 471 2019-06-19 17:09:11 +02:00
ufs-mediatek.c scsi: ufs-mediatek: Add missing MODULE_* information 2019-03-25 22:09:42 -04:00
ufs-mediatek.h scsi: ufs-mediatek: Add UFS support for Mediatek SoC chips 2019-03-19 16:56:21 -04:00
ufs-qcom.c scsi: ufs-qcom: Implement device_reset vops 2019-09-07 16:36:03 -04:00
ufs-qcom.h scsi: ufs-qcom: Implement device_reset vops 2019-09-07 16:36:03 -04:00
ufs-sysfs.c scsi: ufs: revamp string descriptor reading 2019-08-07 21:40:37 -04:00
ufs-sysfs.h scsi: ufs: sysfs: attributes 2018-02-15 18:35:05 -05:00
ufs.h scsi: ufs: revamp string descriptor reading 2019-08-07 21:40:37 -04:00
ufshcd-dwc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ufshcd-dwc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ufshcd-pci.c scsi: ufshdc-pci: Add Intel PCI IDs for EHL 2019-06-26 22:42:28 -04:00
ufshcd-pltfrm.c scsi: ufshcd: use devm_platform_ioremap_resource() to simplify code 2019-09-07 16:42:07 -04:00
ufshcd-pltfrm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
ufshcd.c scsi: ufs: skip shutdown if hba is not powered 2019-09-23 23:09:42 -04:00
ufshcd.h scsi: ufs: Introduce vops for resetting device 2019-09-07 16:35:56 -04:00
ufshci-dwc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ufshci.h scsi: ufs: Add error-handling of Auto-Hibernate 2019-06-18 19:46:23 -04:00
unipro.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00