Re: [PATCH v3 1/2] dax/bus: fix mapping attribute error reporting

[jianyungao89]

From: Jianyun Gao <jianyunga...@gmail.com>

This patch also fixes the mapping_store() error return issue I reported.
The fix looks correct to me.

Reviewed-by: Jianyun Gao <jianyunga...@gmail.com>