[lkml]   [2011]   [Nov]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH] crypto: 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 <>

diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index 2abca78..0605a2b 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)


- if (list_empty(&crypto_alg_list))
- return NULL;
list_for_each_entry(q, &crypto_alg_list, cra_list) {
int match = 0;

 \ /
  Last update: 2011-11-01 23:11    [W:0.123 / U:1.756 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site