diff options
| author | Richard Levitte <levitte@openssl.org> | 2000-07-25 16:56:39 +0000 |
|---|---|---|
| committer | Richard Levitte <levitte@openssl.org> | 2000-07-25 16:56:39 +0000 |
| commit | 34f0fe9de0597bd933f2dd13ae26843ed5273922 (patch) | |
| tree | 8a0c61091b8384a2e92d26e39a069531d3f81dce /crypto/err | |
| parent | ccb9aae90550fced1412074998927813903854bd (diff) | |
Avoid a race condition if another thread happens to remove the error
state at the same time.
Diffstat (limited to 'crypto/err')
| -rw-r--r-- | crypto/err/err.c | 13 |
1 files changed, 8 insertions, 5 deletions
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); |