[PATCH] staging: xillybus: Return -EIO if *_iomap fails, instead of 0

[Dan Carpenter]

On Tue, Dec 17, 2013 at 09:36:29PM +0200, Eli Billauer wrote:
> This patch replicates the correction made by Wei Yongjun on a second
> occurrence of the same bug.
> 
> The first correction was in commit 8eec4555511bfa1f8a2e0a2de45c988fd30c3efb.

Always put patch title as well as the hash.

regards,
dan carpenter