"mpathpersist -oCK <reservation_key> <device>" will return success if it
is run on devices with no usable paths, but nothing is actually done.
The -L command will fail, but it should give up sooner, and with a more
helpful error message.

Reviewed-by: Martin Wilck <mwi...@suse.com>
Signed-off-by: Benjamin Marzinski <bmarz...@redhat.com>
---
 libmpathpersist/mpath_persist.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/libmpathpersist/mpath_persist.c b/libmpathpersist/mpath_persist.c
index 190e9707..26710e79 100644
--- a/libmpathpersist/mpath_persist.c
+++ b/libmpathpersist/mpath_persist.c
@@ -604,7 +604,8 @@ int mpath_prout_common(struct multipath *mpp,int 
rq_servact, int rq_scope,
                        return ret ;
                }
        }
-       return MPATH_PR_SUCCESS;
+       condlog (0, "%s: no path available", mpp->wwid);
+       return MPATH_PR_DMMP_ERROR;
 }
 
 int send_prout_activepath(char * dev, int rq_servact, int rq_scope,
@@ -663,6 +664,11 @@ int mpath_prout_rel(struct multipath *mpp,int rq_servact, 
int rq_scope,
 
        active_pathcount = count_active_paths(mpp);
 
+       if (active_pathcount == 0) {
+               condlog (0, "%s: no path available", mpp->wwid);
+               return MPATH_PR_DMMP_ERROR;
+       }
+
        struct threadinfo thread[active_pathcount];
        memset(thread, 0, sizeof(thread));
        for (i = 0; i < active_pathcount; i++){
-- 
2.17.2

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