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-rw-r--r--src/thread/synccall.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/thread/synccall.c b/src/thread/synccall.c
index 706c8e73..c54570be 100644
--- a/src/thread/synccall.c
+++ b/src/thread/synccall.c
@@ -58,6 +58,7 @@ void __synccall(void (*func)(void *), void *ctx)
 	sem_init(&chaindone, 0, 0);
 	sem_init(&chainlock, 0, 1);
 	chainlen = 0;
+	head = 0;
 	callback = func;
 	context = ctx;