diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/hosts.c | 7 | ||||
| -rw-r--r-- | drivers/scsi/scsi_pm.c | 10 |
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 94025c5cf797..1547bd93c70b 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -250,6 +250,12 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev, if (error) goto out_destroy_freelist; + /* + * Increase usage count temporarily here so that calling + * scsi_autopm_put_host() will trigger runtime idle if there is + * nothing else preventing suspending the device. + */ + pm_runtime_get_noresume(&shost->shost_gendev); pm_runtime_set_active(&shost->shost_gendev); pm_runtime_enable(&shost->shost_gendev); device_enable_async_suspend(&shost->shost_gendev); @@ -290,6 +296,7 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev, goto out_destroy_host; scsi_proc_host_add(shost); + scsi_autopm_put_host(shost); return error; out_destroy_host: diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c index 459abe1dcc87..b44c1bb687a2 100644 --- a/drivers/scsi/scsi_pm.c +++ b/drivers/scsi/scsi_pm.c @@ -139,6 +139,16 @@ static int scsi_bus_resume_common(struct device *dev, else fn = NULL; + /* + * Forcibly set runtime PM status of request queue to "active" to + * make sure we can again get requests from the queue (see also + * blk_pm_peek_request()). + * + * The resume hook will correct runtime PM status of the disk. + */ + if (scsi_is_sdev_device(dev) && pm_runtime_suspended(dev)) + blk_set_runtime_active(to_scsi_device(dev)->request_queue); + if (fn) { async_schedule_domain(fn, dev, &scsi_sd_pm_domain); |