[PATCH 4.14 032/159] blk_rq_map_user_iov: fix error override

4.14-stable review patch. If anyone has any objections, please let me know. -- From: Douglas Gilbert commit 69e0927b3774563c19b5fb32e91d75edc147fb62 upstream. During stress tests by syzkaller on the sg driver the block layer infrequently returns EINVAL.

[PATCH 4.14 032/159] blk_rq_map_user_iov: fix error override

4.14-stable review patch. If anyone has any objections, please let me know. -- From: Douglas Gilbert commit 69e0927b3774563c19b5fb32e91d75edc147fb62 upstream. During stress tests by syzkaller on the sg driver the block layer infrequently returns EINVAL. Closer inspection