kernel: media: dvb-usb: fix memory leak in dvb_usb_adapter_init()

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: fix memory leak in dvbusbadapterinit Syzbot reports a memory leak in "dvbusbadapterinit". The leak is due to not accounting for and freeing current iteration's adapter-priv in case of an error. Currently if an err...