usb: bc: fix crush caused by usb bc detect
authorlyz <lyz@rock-chips.com>
Fri, 12 Jun 2015 12:38:26 +0000 (20:38 +0800)
committerlyz <lyz@rock-chips.com>
Fri, 12 Jun 2015 12:51:13 +0000 (20:51 +0800)
commit3e8ae7c50f3878cf40af58215ec6eb3901549211
treeb3454dbeaf062f9306a3d2b9ceb0893bb2f16b0c
parentef5d7fa8485e9dbee99447905d346eea626949a7
usb: bc: fix crush caused by usb bc detect

Fix a bug that mutex used before init.

Signed-off-by: lyz <lyz@rock-chips.com>
drivers/usb/dwc_otg_310/usbdev_bc.c