Commit e3f205a72c45 ("ASoC: Remove locking in
snd_soc_{new,free}_ac97_codec()") overlooked a unlock on one of the error
paths.
Fixes: e3f205a72c45 ("ASoC: Remove locking in snd_soc_{new,free}_ac97_codec()") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>