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authorNico Huber <nico.huber@secunet.com>2012-11-22 11:18:19 +0100
committerPatrick Georgi <patrick@georgi-clan.de>2012-11-23 18:18:31 +0100
commitb2db28babe0e64e08b1a754b65dd7e437f8d82a9 (patch)
tree505f12ac4f43a4d1a2bf6f4f8a6d922209d69253 /payloads/libpayload/drivers
parentef88e102bb4895753c8ba67e01ee26fdfe3fa712 (diff)
downloadcoreboot-b2db28babe0e64e08b1a754b65dd7e437f8d82a9.tar.xz
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)
Diffstat (limited to 'payloads/libpayload/drivers')
-rw-r--r--payloads/libpayload/drivers/usb/usbhub.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/usb/usbhub.c b/payloads/libpayload/drivers/usb/usbhub.c
index 47215fcf10..90e08dbde4 100644
--- a/payloads/libpayload/drivers/usb/usbhub.c
+++ b/payloads/libpayload/drivers/usb/usbhub.c
@@ -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));