diff options
Diffstat (limited to 'drivers/scsi/hosts.c')
| -rw-r--r-- | drivers/scsi/hosts.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 6660fa92ffa1..8a8f803439e1 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -32,6 +32,7 @@ #include <linux/completion.h> #include <linux/transport_class.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> @@ -156,6 +157,7 @@ EXPORT_SYMBOL(scsi_host_set_state); void scsi_remove_host(struct Scsi_Host *shost) { unsigned long flags; + mutex_lock(&shost->scan_mutex); spin_lock_irqsave(shost->host_lock, flags); if (scsi_host_set_state(shost, SHOST_CANCEL)) @@ -165,6 +167,8 @@ void scsi_remove_host(struct Scsi_Host *shost) return; } spin_unlock_irqrestore(shost->host_lock, flags); + + scsi_autopm_get_host(shost); scsi_forget_host(shost); mutex_unlock(&shost->scan_mutex); scsi_proc_host_rm(shost); @@ -216,12 +220,14 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev, shost->shost_gendev.parent = dev ? dev : &platform_bus; shost->dma_dev = dma_dev; - device_enable_async_suspend(&shost->shost_gendev); - error = device_add(&shost->shost_gendev); if (error) goto out; + pm_runtime_set_active(&shost->shost_gendev); + pm_runtime_enable(&shost->shost_gendev); + device_enable_async_suspend(&shost->shost_gendev); + scsi_host_set_state(shost, SHOST_RUNNING); get_device(shost->shost_gendev.parent); @@ -325,7 +331,6 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) { struct Scsi_Host *shost; gfp_t gfp_mask = GFP_KERNEL; - int rval; if (sht->unchecked_isa_dma && privsize) gfp_mask |= __GFP_DMA; @@ -420,7 +425,8 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) shost->ehandler = kthread_run(scsi_error_handler, shost, "scsi_eh_%d", shost->host_no); if (IS_ERR(shost->ehandler)) { - rval = PTR_ERR(shost->ehandler); + printk(KERN_WARNING "scsi%d: error handler thread failed to spawn, error = %ld\n", + shost->host_no, PTR_ERR(shost->ehandler)); goto fail_kfree; } |