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authorGilad Broner <gbroner@codeaurora.org>2016-10-18 03:10:00 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2016-11-09 01:29:58 +0300
commita508253d0916a0c5973081c4059425ec04e324c8 (patch)
tree91398953943563ac0e6c3c9089fb4062c391e582 /drivers/ps3
parentdcea0bfbc4cb6796a222ffaeebd77a0a89a1babc (diff)
downloadlinux-a508253d0916a0c5973081c4059425ec04e324c8.tar.xz
scsi: ufs: suspend clock scaling for failed runtime_resume
During runtime resume operation, clock scaling may get indirectly resumed via call to ufshcd_set_dev_pwr_mode(): Start/Stop Unit command times out and SCSI error handling ultimately calls the host reset handler to recover, during which clock scaling is resumed. Error case exit path of runtime resume will disable clocks. As clock scaling was already resumed, it will get scheduled later on and try to access UFS registers while clocks are disabled, resulting in unclocked register access. Signed-off-by: Gilad Broner <gbroner@codeaurora.org> Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ps3')
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