crypto: user - Initialise match in crypto_alg_match

We need to default match to 0 as otherwise it may lead to a false
positive.
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

crypto/crypto_user.c

@@ -40,7 +40,6 @@ struct crypto_dump_info {
 
 static struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
 {
-	int match;
 	struct crypto_alg *q, *alg = NULL;
 
 	down_read(&crypto_alg_sem);
@@ -49,6 +48,7 @@ static struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
 		return NULL;
 
 	list_for_each_entry(q, &crypto_alg_list, cra_list) {
+		int match = 0;
 
 		if ((q->cra_flags ^ p->cru_type) & p->cru_mask)
 			continue;