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Commit 47af5518 authored by Cornelia Huck's avatar Cornelia Huck Committed by Martin Schwidefsky
Browse files

[S390] cio: Use device_reprobe() instead of bus_rescan_devices(). 



In io_subchannel_register(), it is better to just reprobe the current
device if it hasn't a driver yet than to rescan the whole bus.

Signed-off-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent d23861ff

drivers/s390/cio/device.c

+13 −1
Original line number Diff line number Diff line
@@ -687,8 +687,20 @@ io_subchannel_register(void *data) 
	cdev = data;

	sch = to_subchannel(cdev->dev.parent);



	/*

	 * io_subchannel_register() will also be called after device

	 * recognition has been done for a boxed device (which will already

	 * be registered). We need to reprobe since we may now have sense id

	 * information.

	 */

	if (klist_node_attached(&cdev->dev.knode_parent)) {

		bus_rescan_devices(&ccw_bus_type);

		if (!cdev->drv) {

			ret = device_reprobe(&cdev->dev);

			if (ret)

				/* We can't do much here. */

				dev_info(&cdev->dev, "device_reprobe() returned"

					 " %d\n", ret);

		}

		goto out;

	}

	/* make it known to the system */