isisd: fix assert warning

icc (the Intel C Compiler) "knows" that assert() can be disabled by
setting specific optimisation flags, and therefore emits a warning about
missing a return value after an "always-error" assert.

Workaround by returning a value - this probably needs discussion and a
better fix (for all places where the code needs to abort due to internal
errors).

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/isisd/isis_redist.c b/isisd/isis_redist.c
index 5311b5c69c..1ce6a925e7 100644
--- a/isisd/isis_redist.c
+++ b/isisd/isis_redist.c
@@ -52,6 +52,7 @@ redist_protocol(int family)
     return 1;
 
   assert(!"Unsupported address family!");
+  return 0;
 }
 
 static int