diff --git a/scripts/stream_throughput.py b/scripts/stream_throughput.py
index 94bcf66..bbcb411 100644
--- a/scripts/stream_throughput.py
+++ b/scripts/stream_throughput.py
@@ -32,7 +32,7 @@ def parse_packet(buf):
     """ Attempt to parse packets from the received buffer. """
     # Attempt to parse a block from the buffer.
     if len(buf) < struct.calcsize(HEADER_FORMAT):
-        return None
+        return []
 
     # Parse out the packet header
     magic, format_id, batch_size, sequence_number = struct.unpack_from(HEADER_FORMAT, buf)
@@ -40,14 +40,14 @@ def parse_packet(buf):
 
     if magic != MAGIC_HEADER:
         logging.warning('Encountered bad magic header: %s', hex(magic))
-        return None
+        return []
 
     if format_id not in FORMAT:
         raise Exception(f'Unknown format specifier: {format_id}')
 
     frame_format = FORMAT[format_id](batch_size)
 
-    batch_count = len(buf) / struct.calcsize(frame_format)
+    batch_count = int(len(buf) / struct.calcsize(frame_format))
 
     packets = []
     for offset in range(batch_count):
@@ -135,9 +135,7 @@ def main():
 
         # Handle any received packets.
         total_bytes += len(data)
-        packet = parse_packet(data)
-
-        if packet:
+        for packet in parse_packet(data):
             # Handle any dropped packets.
             drop_count += sequence_delta(last_index, packet.index)
             last_index = packet.index
diff --git a/src/bin/dual-iir.rs b/src/bin/dual-iir.rs
index b77091c..6930d3d 100644
--- a/src/bin/dual-iir.rs
+++ b/src/bin/dual-iir.rs
@@ -315,7 +315,7 @@ const APP: () = {
                     .chain(dac_samples.iter())
                     .zip(buf.chunks_exact_mut(N))
                 {
-                    assert_eq!(core::mem::size_of_val(data), N);
+                    assert_eq!(core::mem::size_of_val(*data), N);
                     let data = unsafe {
                         core::slice::from_raw_parts(
                             data.as_ptr() as *const u8,
diff --git a/src/bin/lockin.rs b/src/bin/lockin.rs
index c0bc924..be4f812 100644
--- a/src/bin/lockin.rs
+++ b/src/bin/lockin.rs
@@ -403,7 +403,7 @@ const APP: () = {
                     .chain(dac_samples.iter())
                     .zip(buf.chunks_exact_mut(N))
                 {
-                    assert_eq!(core::mem::size_of_val(data), N);
+                    assert_eq!(core::mem::size_of_val(*data), N);
                     let data = unsafe {
                         core::slice::from_raw_parts(
                             data.as_ptr() as *const u8,