From: Brendan Doyle <[email protected]>

Signed-off-by: Brendan Doyle <[email protected]>
---
src/rpc.c |    3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/rpc.c b/src/rpc.c
index 6312d42..cb224fd 100644
--- a/src/rpc.c
+++ b/src/rpc.c
@@ -360,7 +360,8 @@ madrpc_init(char *dev_name, int dev_port, int 
*mgmt_classes, int num_classes)
                IBPANIC("can't init UMAD library");

        if ((fd = umad_open_port(dev_name, dev_port)) < 0)
-               IBPANIC("can't open UMAD port (%s:%d)", dev_name, dev_port);
+               IBPANIC("can't open UMAD port (%s:%d)",
+               dev_name ? dev_name : "(nil)", dev_port);

        if (num_classes >= MAX_CLASS)
                IBPANIC("too many classes %d requested", num_classes);
--
1.7.1


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