[nrf fromtree] Bluetooth: Mesh: Fix uninitialized field when cancelli…

…ng transfer blob

Initialize the missing chunk field when canceling a BLOB Transfer.
If you canceled a BLOB Transfer, the missing_chunk was not cleared in
the next BLOB Transfer. This can make it look like there are still
missing chunks, even though all chunks in the block have already been
received, and it does cause bugs.

Signed-off-by: Junho Lee <tot0roprog@gmail.com>
(cherry picked from commit 327acfb05b368c104ee70b81da92e7cf7a9265f5)

subsys/bluetooth/mesh/blob_srv.c

@@ -221,6 +221,7 @@ static void cancel(struct bt_mesh_blob_srv *srv)
 	srv->state.xfer.mode = BT_MESH_BLOB_XFER_MODE_NONE;
 	srv->state.ttl = BT_MESH_TTL_DEFAULT;
 	srv->block.number = 0xffff;
+	memset(srv->block.missing, 0, sizeof(srv->block.missing));
 	srv->state.xfer.chunk_size = 0xffff;
 	k_work_cancel_delayable(&srv->rx_timeout);
 	k_work_cancel_delayable(&srv->pull.report);