Fix bad memory accesses during srd_exit()

[libsigrokdecode.git] / srd.c

diff --git a/srd.c b/srd.c
index 535ea122e5b3876d0846e170d5af63a2f6ca746c..248d8e5a69e3793450f50127a47e8a7563b416e0 100644 (file)
--- a/srd.c
+++ b/srd.c
@@ -289,6 +289,12 @@ SRD_API int srd_init(const char *path)
        return SRD_OK;
 }
 
+static void srd_session_destroy_cb(void *arg, void *ignored)
+{
+       (void)ignored; // Prevent unused warning
+       srd_session_destroy((struct srd_session *)arg);
+}
+
 /**
  * Shutdown libsigrokdecode.
  *
@@ -307,8 +313,9 @@ SRD_API int srd_exit(void)
 {
        srd_dbg("Exiting libsigrokdecode.");
 
-       for (GSList *l = sessions; l; l = l->next)
-               srd_session_destroy(l->data);
+       g_slist_foreach(sessions, srd_session_destroy_cb, NULL);
+       g_slist_free(sessions);
+       sessions = NULL;
 
        srd_decoder_unload_all();
        g_slist_free_full(searchpaths, g_free);