usb: gadget: uvc: fix missing mutex_unlock() if kstrtou8() fails
If kstrtou8() fails, the mutex_unlock() is missed, move kstrtou8() before mutex_lock() to fix it up. Fixes: 0525210c ("usb: gadget: uvc: Allow definition of XUs in configfs") Fixes: b3c839bd ("usb: gadget: uvc: Make bSourceID read/write") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20230213070926.776447-1-yangyingliang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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