When we excute 'multipath -p' with invalid policy, get_pgpolicy_id() returns IOPOLICY_UNDEF.
We should compare conf->pgpolicy_flag with IOPOLICY_UNDEF, otherwise, it couldn't get what we want.
---
multipath/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/multipath/main.c b/multipath/main.c
index c33f689..af7cf5b 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -532,7 +532,7 @@ main (int argc, char *argv[])
break;
case 'p':
conf->pgpolicy_flag = get_pgpolicy_id(optarg);
- if (conf->pgpolicy_flag == -1) {
+ if (conf->pgpolicy_flag == IOPOLICY_UNDEF) {
printf("'%s' is not a valid policy\n", optarg);
usage(argv[0]);
exit(1);
--
1.9.1
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