For various error conditions the bfa driver just returns
'DID_ERROR', which carries no information at all about the
actual source of error.
This patch updates the error handling to return a correct
error code, depending on the type of error occurred.
Signed-off-by: NHannes Reinecke <hare@suse.de>
Acked-by: NVijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>