The message ioctl would succeed for the 'reinistate_path' and 'fail_path' messages even if action was not taken because the specified device was not a valid path of the multipath device. before: $ dmsetup message mpathb 0 reinstate_path /dev/vdb $ echo $? 0 after: $ dmsetup message mpathb 0 reinstate_path /dev/vdb device-mapper: message ioctl failed: Invalid argument Command failed $ echo $? 1 Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx> --- drivers/md/dm-mpath.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index b82d288..97842c6 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -1065,7 +1065,7 @@ out: static int action_dev(struct multipath *m, struct dm_dev *dev, action_fn action) { - int r = 0; + int r = -EINVAL; struct pgpath *pgpath; struct priority_group *pg; -- 1.7.3.4 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel