diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c
index 585d33144c33..55550ead2ced 100644
--- a/net/mac802154/llsec.c
+++ b/net/mac802154/llsec.c
@@ -152,7 +152,7 @@ err_tfm0:
 	crypto_free_sync_skcipher(key->tfm0);
 err_tfm:
 	for (i = 0; i < ARRAY_SIZE(key->tfm); i++)
-		if (key->tfm[i])
+		if (!IS_ERR_OR_NULL(key->tfm[i]))
 			crypto_free_aead(key->tfm[i]);
 
 	kfree_sensitive(key);