[SCSI] allow sleeping in ->eh_bus_reset_handler()
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 8c64212..47cf9bd 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -1957,23 +1957,30 @@
printk(KERN_INFO "scsi%d (%d:%d) New error handler wants BUS reset, cmd %p\n\t",
SCp->device->host->host_no, SCp->device->id, SCp->device->lun, SCp);
scsi_print_command(SCp);
+
/* In theory, eh_complete should always be null because the
* eh is single threaded, but just in case we're handling a
* reset via sg or something */
- while(hostdata->eh_complete != NULL) {
+ spin_lock_irq(SCp->device->host->host_lock);
+ while (hostdata->eh_complete != NULL) {
spin_unlock_irq(SCp->device->host->host_lock);
msleep_interruptible(100);
spin_lock_irq(SCp->device->host->host_lock);
}
+
hostdata->eh_complete = &complete;
NCR_700_internal_bus_reset(SCp->device->host);
+
spin_unlock_irq(SCp->device->host->host_lock);
wait_for_completion(&complete);
spin_lock_irq(SCp->device->host->host_lock);
+
hostdata->eh_complete = NULL;
/* Revalidate the transport parameters of the failing device */
if(hostdata->fast)
spi_schedule_dv_device(SCp->device);
+
+ spin_unlock_irq(SCp->device->host->host_lock);
return SUCCESS;
}