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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-03-19 16:15:33 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-03-19 16:15:33 +0100
commit7e2dc8ed7862ac622b5a59953b679de97001dc83 (patch)
treed2d2cf61a22f5a6404000ee007c5e80bc2d9eca9 /net/core/neighbour.c
parenta7e8c9cc3a13baf3dcf9734dd55609aa7ff9a1a0 (diff)
parent4a2b0ed2ac7abe9743e1559d212075a0ebac96b3 (diff)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core/neighbour.c')
-rw-r--r--net/core/neighbour.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 96a3b1a93252..e4ee0c02fb44 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -821,7 +821,8 @@ int pneigh_create(struct neigh_table *tbl, struct net *net,
update:
WRITE_ONCE(n->flags, flags);
n->permanent = permanent;
- WRITE_ONCE(n->protocol, protocol);
+ if (protocol)
+ WRITE_ONCE(n->protocol, protocol);
out:
mutex_unlock(&tbl->phash_lock);
return err;