ASoC: rt5677-spi: fix sparse warnings

Fix bugs reported by kbuild test robot

Fixes: a0e0d135427c ("ASoC: rt5677: Add a PCM device for streaming hotword via SPI")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Link: https://lore.kernel.org/r/20191024184026.183913-1-cujomalainey@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed