| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.3 001/180] usb: gadget: configfs: Fix missing spin_lock_init() | Date | Mon, 16 Dec 2019 18:47:21 +0100 |
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From: Wei Yongjun <weiyongjun1@huawei.com>
commit 093edc2baad2c258b1f55d1ab9c63c2b5ae67e42 upstream.
The driver allocates the spinlock but not initialize it. Use spin_lock_init() on it to initialize it correctly.
This is detected by Coccinelle semantic patch.
Fixes: 1a1c851bbd70 ("usb: gadget: configfs: fix concurrent issue between composite APIs") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Cc: stable <stable@vger.kernel.org> Reviewed-by: Peter Chen <peter.chen@nxp.com> Link: https://lore.kernel.org/r/20191030034046.188808-1-weiyongjun1@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/usb/gadget/configfs.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -1544,6 +1544,7 @@ static struct config_group *gadgets_make gi->composite.resume = NULL; gi->composite.max_speed = USB_SPEED_SUPER; + spin_lock_init(&gi->spinlock); mutex_init(&gi->lock); INIT_LIST_HEAD(&gi->string_list); INIT_LIST_HEAD(&gi->available_func);
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