USB: legousbtower: use usb_control_msg_recv()
The usb_control_msg_recv() function can handle data on the stack, as well as properly detecting short reads, so move to use that function instead of the older usb_control_msg() call. This ends up removing a lot of extra lines in the driver. Cc: Juergen Stuber <starblue@users.sourceforge.net> Link: https://lore.kernel.org/r/20200914153756.3412156-6-gregkh@linuxfoundation.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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