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| author | Doug Hogan <[email protected]> | 2019-01-07 06:44:29 -0800 |
|---|---|---|
| committer | Doug Hogan <[email protected]> | 2019-01-07 20:17:55 -0800 |
| commit | 0a04504f0eee025f02a405ff951f4ff5dea80345 (patch) | |
| tree | c5496a59b41b9611e5e1f05fdd92166dd4ca5e66 | |
| parent | 5904d78fbea85c481dc595df1e279f068acf6d12 (diff) | |
| download | otp-0a04504f0eee025f02a405ff951f4ff5dea80345.tar.gz otp-0a04504f0eee025f02a405ff951f4ff5dea80345.tar.bz2 otp-0a04504f0eee025f02a405ff951f4ff5dea80345.zip | |
Revamp hmac_context_dtor()
Make it NULL safe.
| -rw-r--r-- | lib/crypto/c_src/hmac.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/crypto/c_src/hmac.c b/lib/crypto/c_src/hmac.c index 143cde90e1..6ddbd2c59a 100644 --- a/lib/crypto/c_src/hmac.c +++ b/lib/crypto/c_src/hmac.c @@ -84,11 +84,17 @@ ERL_NIF_TERM hmac_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) static void hmac_context_dtor(ErlNifEnv* env, struct hmac_context *obj) { + if (obj == NULL) + return; + if (obj->alive) { - HMAC_CTX_free(obj->ctx); + if (obj->ctx) + HMAC_CTX_free(obj->ctx); obj->alive = 0; } - enif_mutex_destroy(obj->mtx); + + if (obj->mtx != NULL) + enif_mutex_destroy(obj->mtx); } ERL_NIF_TERM hmac_init_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) |