bgpd: Ensure that bgp_delete bgp pointer is non-null

Crash w/ an assert if someone calls bgp_delete with a
NULL parameter as opposed to crashing when we dereference
the pointer a bit later.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

diff --git a/bgpd/bgpd.c b/bgpd/bgpd.c
index 5d858ae14fa1a3385160d230ebb65c5c43010fed..f8903ea568528123d0dc9f8444ca2b442b906ffc 100644 (file)
--- a/bgpd/bgpd.c
+++ b/bgpd/bgpd.c
@@ -3300,6 +3300,7 @@ int bgp_delete(struct bgp *bgp)
        afi_t afi;
        int i;
 
+       assert(bgp);
        THREAD_OFF(bgp->t_startup);
 
        if (BGP_DEBUG(zebra, ZEBRA)) {