diff options
Diffstat (limited to 'drivers/scsi/scsi_sysfs.c')
| -rw-r--r-- | drivers/scsi/scsi_sysfs.c | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 67bb20ed45d..fbd7f9ed125 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -21,6 +21,8 @@ #include "scsi_priv.h" #include "scsi_logging.h" +static struct device_type scsi_dev_type; + static const struct { enum scsi_device_state value; char *name; @@ -335,7 +337,12 @@ static struct class sdev_class = { /* all probing is done in the individual ->probe routines */ static int scsi_bus_match(struct device *dev, struct device_driver *gendrv) { - struct scsi_device *sdp = to_scsi_device(dev); + struct scsi_device *sdp; + + if (dev->type != &scsi_dev_type) + return 0; + + sdp = to_scsi_device(dev); if (sdp->no_uld_attach) return 0; return (sdp->inq_periph_qual == SCSI_INQ_PQ_CON)? 1: 0; @@ -351,10 +358,16 @@ static int scsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env) static int scsi_bus_suspend(struct device * dev, pm_message_t state) { - struct device_driver *drv = dev->driver; - struct scsi_device *sdev = to_scsi_device(dev); + struct device_driver *drv; + struct scsi_device *sdev; int err; + if (dev->type != &scsi_dev_type) + return 0; + + drv = dev->driver; + sdev = to_scsi_device(dev); + err = scsi_device_quiesce(sdev); if (err) return err; @@ -370,10 +383,16 @@ static int scsi_bus_suspend(struct device * dev, pm_message_t state) static int scsi_bus_resume(struct device * dev) { - struct device_driver *drv = dev->driver; - struct scsi_device *sdev = to_scsi_device(dev); + struct device_driver *drv; + struct scsi_device *sdev; int err = 0; + if (dev->type != &scsi_dev_type) + return 0; + + drv = dev->driver; + sdev = to_scsi_device(dev); + if (drv && drv->resume) err = drv->resume(dev); |