[RFC v4 10/14] usb: hub: Handle deferred probe
From: Krzysztof Kozlowski <hidden>
Date: 2016-06-09 09:45:20
Also in:
linux-arm-kernel, linux-devicetree, linux-mmc, linux-pm, linux-samsung-soc, lkml
Subsystem:
the rest, usb subsystem · Maintainers:
Linus Torvalds, Greg Kroah-Hartman
Add support for deferred probing to the usb hub. Currently EPROBE_DEFER does not exist in usb hub path but future patches will add it on the port level. Signed-off-by: Krzysztof Kozlowski <redacted> Reviewed-by: Javier Martinez Canillas <redacted> --- drivers/usb/core/hub.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index bee13517676f..c421745b84aa 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c@@ -1733,6 +1733,7 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) struct usb_endpoint_descriptor *endpoint; struct usb_device *hdev; struct usb_hub *hub; + int ret; desc = intf->cur_altsetting; hdev = interface_to_usbdev(intf);
@@ -1852,11 +1853,12 @@ descriptor_error: if (id->driver_info & HUB_QUIRK_CHECK_PORT_AUTOSUSPEND) hub->quirk_check_port_auto_suspend = 1; - if (hub_configure(hub, endpoint) >= 0) + ret = hub_configure(hub, endpoint); + if (ret >= 0) return 0; hub_disconnect(intf); - return -ENODEV; + return ret; } static int
--
1.9.1