[PATCH] USB: use bus_to_hdc instead of container_of

[Yuanhan Liu <yliu.null@xxxxxxxxx>]

We defined bus_to_hdc for that, use it.

Signed-off-by: Yuanhan Liu <yliu.null@xxxxxxxxx>
---
 drivers/usb/core/usb.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index cd8fb44..7d3de09 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -370,14 +370,14 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
 				 struct usb_bus *bus, unsigned port1)
 {
 	struct usb_device *dev;
-	struct usb_hcd *usb_hcd = container_of(bus, struct usb_hcd, self);
+	struct usb_hcd *usb_hcd = bus_to_hcd(bus);
 	unsigned root_hub = 0;
 
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return NULL;
 
-	if (!usb_get_hcd(bus_to_hcd(bus))) {
+	if (!usb_get_hcd(usb_hcd)) {
 		kfree(dev);
 		return NULL;
 	}
-- 
1.7.4.4

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