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In function ubi_nvmem_reg_read the while-loop can only be exiting of bytes_left is zero or an error has occurred. There is an exit return path if an error occurs, so the bytes_left can only be zero after that point. Hence the check for a non-zero bytes_left at the end of the function is redundant and can be removed. Remove the check and just return 0. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>