From fb223c32b4d3ee593c8dce07e983680d06abe387 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Wed, 2 Nov 2011 09:15:16 +1100 Subject: [PATCH] crypto: user - Fix rwsem leak in crypto_user The list_empty case in crypto_alg_match() will return without calling up_read() on crypto_alg_sem. We could do the "goto out" routine, but the function will clearly do the right thing with that test simply removed. Signed-off-by: Jonathan Corbet Signed-off-by: Herbert Xu --- crypto/crypto_user.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c index 2abca780312d..0605a2bbba75 100644 --- a/crypto/crypto_user.c +++ b/crypto/crypto_user.c @@ -44,9 +44,6 @@ static struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact) down_read(&crypto_alg_sem); - if (list_empty(&crypto_alg_list)) - return NULL; - list_for_each_entry(q, &crypto_alg_list, cra_list) { int match = 0; -- 2.20.1