From 34f0fe9de0597bd933f2dd13ae26843ed5273922 Mon Sep 17 00:00:00 2001 From: Richard Levitte Date: Tue, 25 Jul 2000 16:56:39 +0000 Subject: Avoid a race condition if another thread happens to remove the error state at the same time. --- crypto/err/err.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'crypto/err') diff --git a/crypto/err/err.c b/crypto/err/err.c index ad062a9022..7ce9e8fb9a 100644 --- a/crypto/err/err.c +++ b/crypto/err/err.c @@ -652,12 +652,15 @@ void ERR_remove_state(unsigned long pid) pid=(unsigned long)CRYPTO_thread_id(); tmp.pid=pid; CRYPTO_w_lock(CRYPTO_LOCK_ERR); - p=(ERR_STATE *)lh_delete(thread_hash,&tmp); - if (lh_num_items(thread_hash) == 0) + if (thread_hash) { - /* make sure we don't leak memory */ - lh_free(thread_hash); - thread_hash = NULL; + p=(ERR_STATE *)lh_delete(thread_hash,&tmp); + if (lh_num_items(thread_hash) == 0) + { + /* make sure we don't leak memory */ + lh_free(thread_hash); + thread_hash = NULL; + } } CRYPTO_w_unlock(CRYPTO_LOCK_ERR); -- cgit v1.2.3