The desc->name field is allocated with devm_kstrdup, but is also kfreed
on the error path, causing it to be double freed. Remove the kfree on
the error path.

Fixes: 8d9f8d57 ("regulator: Add driver for cros-ec-regulator")
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20200728091909.2009771-1-pihsun@chromium.orgSigned-off-by: Mark Brown <broonie@kernel.org>