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libpayload: Detach devices behind removed USB hubs 

When a USB hub got removed, we should also remove all devices that
were attached to it.

Change-Id: I73c0da1b7570f1af9726925ca222781b3d752557
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1903
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Tested-by: build bot (Jenkins)
This commit is contained in:
Nico Huber 2012-11-22 11:18:19 +01:00 committed by Patrick Georgi
parent ef88e102bb
commit b2db28babe
1 changed files with 11 additions and 0 deletions
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11
payloads/libpayload/drivers/usb/usbhub.c
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@ -53,6 +53,17 @@ typedef struct {
static void
usb_hub_destroy (usbdev_t *dev)
{
int i;
/* First, detach all devices behind this hub. */
int *const ports = HUB_INST (dev)->ports;
for (i = 1; i <= HUB_INST (dev)->num_ports; i++) {
if (ports[i] != -1) {
usb_detach_device(dev->controller, ports[i]);
ports[i] = -1;
}
}
free (HUB_INST (dev)->ports);
free (HUB_INST (dev)->descriptor);
free (HUB_INST (dev));