tcptls: NULL-check the parameter of ast_ssl_teardown before accessing it.

This avoids a crash on stopping a chan_sip which failed to start its TLS server.

ASTERISK-27339 #close

Change-Id: I327fc70db68eaaca5b50a15c7fd687fde79263d5
changes/88/6788/1
Alexander Traud 8 years ago
parent acf686e6a5
commit 44d9446eb5

@ -500,7 +500,7 @@ int ast_ssl_setup(struct ast_tls_config *cfg)
void ast_ssl_teardown(struct ast_tls_config *cfg)
{
#ifdef DO_SSL
if (cfg->ssl_ctx) {
if (cfg && cfg->ssl_ctx) {
SSL_CTX_free(cfg->ssl_ctx);
cfg->ssl_ctx = NULL;
}

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