File multipath-tools-check-for-empty-mpvecs of Package multipath-tools

commit 1b043535b5584cf8298bf535e5794289f1b98f43
Author: Hannes Reinecke <hare@suse.de>
Date:   Tue Nov 4 09:40:26 2008 +0100

    Check for empty mpvecs in mpvec_garbage_collector()
    
    During shutdown the mpvec pointer can indeed be empty, so we should
    check it first before trying to access it.
    
    References: 437245
    
    Signed-off-by: Hannes Reinecke <hare@suse.de>

diff --git a/multipathd/main.c b/multipathd/main.c
index 78e6ed3..a4b0311 100644
--- a/multipathd/main.c
+++ b/multipathd/main.c
@@ -798,6 +798,9 @@ mpvec_garbage_collector (struct vectors * vecs)
 	struct multipath * mpp;
 	unsigned int i;
 
+	if (!vecs->mpvec)
+		return;
+
 	vector_foreach_slot (vecs->mpvec, mpp, i) {
 		if (mpp && mpp->alias && !dm_map_present(mpp->alias)) {
 			condlog(2, "%s: remove dead map", mpp->alias);