This will be convenient in future patches.
Signed-off-by: Ethan Jackson <et...@nicira.com>
---
lib/netdev.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/lib/netdev.c b/lib/netdev.c
index 653f5bc..d255dcc 100644
--- a/lib/netdev.c
+++ b/lib/netdev.c
@@ -277,14 +277,17 @@ netdev_open(const char *name, const char *type, struct
netdev **netdevp)
return 0;
}
-/* Returns a reference to 'netdev_' for the caller to own. */
+/* Returns a reference to 'netdev_' for the caller to own. Returns null if
+ * 'netdev_' is null. */
struct netdev *
netdev_ref(const struct netdev *netdev_)
{
struct netdev *netdev = CONST_CAST(struct netdev *, netdev_);
- ovs_assert(netdev->ref_cnt > 0);
- netdev->ref_cnt++;
+ if (netdev) {
+ ovs_assert(netdev->ref_cnt > 0);
+ netdev->ref_cnt++;
+ }
return netdev;
}
--
1.7.9.5
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