[PATCH v2] scsi: Synchronize request queue PM status only on successful resume

stanley.chu-NuS5LvNUpcJWk0Htik3J/w
2019-01-03T06:53:13Z

The commit 356fd2663cff ("scsi: Set request queue runtime PM status
back to active on resume") fixed up the inconsistent RPM status between
request queue and device. However changing request queue RPM status
shall be done only on successful resume, otherwise status may be still
inconsistent as below,

Request queue: RPM_ACTIVE
Device: RPM_SUSPENDED

This ends up soft lockup because requests can be submitted to
underlying devices but those devices and their required resource
are not resumed.