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Date: Thu, 05 May 2016 14:34:21 +0200
From: Krzysztof Kozlowski <k.kozlowski@...sung.com>
To: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-mmc@...r.kernel.org,
linux-pm@...r.kernel.org, linux-usb@...r.kernel.org,
Ulf Hansson <ulf.hansson@...aro.org>,
Sebastian Reichel <sre@...nel.org>,
Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
David Woodhouse <dwmw2@...radead.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Mark Brown <broonie@...nel.org>
Cc: tjakobi@...h.uni-bielefeld.de, m.szyprowski@...sung.com,
hverkuil@...all.nl, Krzysztof Kozlowski <k.kozlowski@...sung.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: [RFC v2 08/13] usb: hub: Handle deferred probe
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 <k.kozlowski@...sung.com>
---
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 38cc4bae0a82..1c82fcc448f5 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1731,6 +1731,7 @@ 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);
@@ -1850,11 +1851,12 @@ 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
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