commit
0d5644b7d8daa3c1d91acb4367731f568c9c9469 upstream.
Runtime PM should be configured already once we call device_add. See
also the description in this mail thread
https://lists.linuxfoundation.org/pipermail/linux-pm/2009-November/023198.html
or the order of calls e.g. in usb_new_device.
The changed order also helps to avoid scenarios where runtime pm for
&shost->shost_gendev is activated whilst the parent is suspended,
resulting in error message "runtime PM trying to activate child device
hostx but parent yyy is not active".
In addition properly reverse the runtime pm calls in the error path.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
shost->dma_dev = dma_dev;
shost->dma_dev = dma_dev;
- error = device_add(&shost->shost_gendev);
- 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
/*
* Increase usage count temporarily here so that calling
* scsi_autopm_put_host() will trigger runtime idle if there is
pm_runtime_enable(&shost->shost_gendev);
device_enable_async_suspend(&shost->shost_gendev);
pm_runtime_enable(&shost->shost_gendev);
device_enable_async_suspend(&shost->shost_gendev);
+ error = device_add(&shost->shost_gendev);
+ if (error)
+ goto out_destroy_freelist;
+
scsi_host_set_state(shost, SHOST_RUNNING);
get_device(shost->shost_gendev.parent);
scsi_host_set_state(shost, SHOST_RUNNING);
get_device(shost->shost_gendev.parent);
out_del_gendev:
device_del(&shost->shost_gendev);
out_destroy_freelist:
out_del_gendev:
device_del(&shost->shost_gendev);
out_destroy_freelist:
+ device_disable_async_suspend(&shost->shost_gendev);
+ pm_runtime_disable(&shost->shost_gendev);
+ pm_runtime_set_suspended(&shost->shost_gendev);
+ pm_runtime_put_noidle(&shost->shost_gendev);
scsi_destroy_command_freelist(shost);
out_destroy_tags:
if (shost_use_blk_mq(shost))
scsi_destroy_command_freelist(shost);
out_destroy_tags:
if (shost_use_blk_mq(shost))