diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index a216c439b6f2eb28739a6191dff3acb18dbb8f4d..d0d8eeaa812980e155fac893b3baec4dc193a8da 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -220,6 +220,9 @@ int mesh_rmc_check(struct ieee80211_sub_if_data *sdata,
 	u8 idx;
 	struct rmc_entry *p, *n;
 
+	if (!rmc)
+		return -1;
+
 	/* Don't care about endianness since only match matters */
 	memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum));
 	idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask;