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-rw-r--r--tools/zalsa/zita-a2j.cc1
-rw-r--r--tools/zalsa/zita-j2a.cc1
2 files changed, 2 insertions, 0 deletions
diff --git a/tools/zalsa/zita-a2j.cc b/tools/zalsa/zita-a2j.cc
index 7fa56c39..de472fca 100644
--- a/tools/zalsa/zita-a2j.cc
+++ b/tools/zalsa/zita-a2j.cc
@@ -320,6 +320,7 @@ jack_initialize (jack_client_t* client, const char* load_init)
void jack_finish (void* arg)
{
+ if (!arg) return;
Jackclient *J = (Jackclient *)arg;
zita_a2j *c = (zita_a2j *)J->getarg();
c->jack_finish(arg);
diff --git a/tools/zalsa/zita-j2a.cc b/tools/zalsa/zita-j2a.cc
index 28b41bf1..a3800330 100644
--- a/tools/zalsa/zita-j2a.cc
+++ b/tools/zalsa/zita-j2a.cc
@@ -318,6 +318,7 @@ jack_initialize (jack_client_t* client, const char* load_init)
void jack_finish (void* arg)
{
+ if (!arg) return;
Jackclient *J = (Jackclient *)arg;
zita_j2a *c = (zita_j2a *)J->getarg();
c->jack_finish(arg);