since clk_prepare_enable() is used to get i2c->clk, we should
use clk_disable_unprepare() to release it for the error path.
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Acked-by: NBaruch Siach <baruch@tkos.co.il>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>