eval: free previous exception when storing a new one

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 3 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index caa46d6..cfee806 100644
--- a/eval.c
+++ b/eval.c
@@ -49,6 +49,9 @@ ut_exception(struct ut_state *state, uint32_t off, const char *fmt, ...)
 
 	json_object_set_userdata(msg, exception_tag, NULL);
 
+	if (state->error.code == UT_ERROR_EXCEPTION)
+		json_object_put(state->error.info.exception);
+
 	state->error.code = UT_ERROR_EXCEPTION;
 	state->error.info.exception = msg;