USB: mos7720: fix DMA to stack
The read_mos_reg function is called with stack-allocated buffers, which must not be used for control messages. Cc: stable@vger.kernel.org Signed-off-by: NJohan Hovold <jhovold@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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