src/msgb.c: avoid using internal talloc API

An internal symbol '_talloc_zero' of talloc library was used
during a msgb allocation. This is not actually good because:

  - it may be removed or modified by talloc developers;
  - the behaviour may be changed by talloc developers;
  - it's marked as internal using 'underscore';
  - there is public API to do the same.

So, let's use the public API.

Change-Id: I1080c9071e997944cc0f9fc3716129e9395437ad

1 files changed, 4 insertions, 2 deletions

diff --git a/src/msgb.c b/src/msgb.c
index 82902b40..844cfc61 100644
--- a/src/msgb.c
+++ b/src/msgb.c
@@ -79,14 +79,16 @@ struct msgb *msgb_alloc(uint16_t size, const char *name)
 {
 	struct msgb *msg;
 
-	msg = _talloc_zero(tall_msgb_ctx, sizeof(*msg) + size, name);
-
+	msg = talloc_named_const(tall_msgb_ctx, sizeof(*msg) + size, name);
 	if (!msg) {
 		LOGP(DLGLOBAL, LOGL_FATAL, "Unable to allocate a msgb: "
 			"name='%s', size=%u\n", name, size);
 		return NULL;
 	}
 
+	/* Manually zero-initialize allocated memory */
+	memset(msg, 0x00, sizeof(*msg) + size);
+
 	msg->data_len = size;
 	msg->len = 0;
 	msg->data = msg->_data;