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commit0df11fa8ceupstream. When device_add(&udev->dev) succeeds and a later call fails, usb_new_device() does not properly call device_del(). As comment of device_add() says, 'if device_add() succeeds, you should call device_del() when you want to get rid of it. If device_add() has not succeeded, use only put_device() to drop the reference count'. Found by code review. Cc: stable <stable@kernel.org> Fixes:9f8b17e643("USB: make usbdevices export their device nodes instead of using a separate class") Signed-off-by: Ma Ke <make_ruc2021@163.com> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20241218071346.2973980-1-make_ruc2021@163.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>