diff --git a/rpcs3/Emu/Cell/Modules/cellMic.cpp b/rpcs3/Emu/Cell/Modules/cellMic.cpp
index fd0bce6eae..bdcc0ef2df 100644
--- a/rpcs3/Emu/Cell/Modules/cellMic.cpp
+++ b/rpcs3/Emu/Cell/Modules/cellMic.cpp
@@ -931,6 +931,8 @@ error_code cellMicReadRaw(s32 dev_num, vm::ptr<void> data, s32 max_bytes)
 {
 	cellMic.trace("cellMicReadRaw(dev_num=%d, data=0x%x, maxBytes=%d)", dev_num, data, max_bytes);
 
+	// TODO: CELL_MICIN_ERROR_PARAM
+
 	auto& mic_thr = g_fxo->get<mic_thread>();
 	const std::lock_guard lock(mic_thr.mutex);
 	if (!mic_thr.init)
@@ -944,13 +946,15 @@ error_code cellMicReadRaw(s32 dev_num, vm::ptr<void> data, s32 max_bytes)
 	if (!mic.is_opened() || !(mic.get_signal_types() & CELLMIC_SIGTYPE_RAW))
 		return CELL_MICIN_ERROR_NOT_OPEN;
 
-	return mic.read_raw(vm::_ptr<u8>(data.addr()), max_bytes);
+	return not_an_error(mic.read_raw(vm::_ptr<u8>(data.addr()), max_bytes));
 }
 
 error_code cellMicRead(s32 dev_num, vm::ptr<void> data, u32 max_bytes)
 {
 	cellMic.warning("cellMicRead(dev_num=%d, data=0x%x, maxBytes=0x%x)", dev_num, data, max_bytes);
 
+	// TODO: CELL_MICIN_ERROR_PARAM
+
 	auto& mic_thr = g_fxo->get<mic_thread>();
 	const std::lock_guard lock(mic_thr.mutex);
 	if (!mic_thr.init)
@@ -964,7 +968,7 @@ error_code cellMicRead(s32 dev_num, vm::ptr<void> data, u32 max_bytes)
 	if (!mic.is_opened() || !(mic.get_signal_types() & CELLMIC_SIGTYPE_DSP))
 		return CELL_MICIN_ERROR_NOT_OPEN;
 
-	return mic.read_dsp(vm::_ptr<u8>(data.addr()), max_bytes);
+	return not_an_error(mic.read_dsp(vm::_ptr<u8>(data.addr()), max_bytes));
 }
 
 error_code cellMicReadAux(s32 dev_num, vm::ptr<void> data, s32 max_bytes)
diff --git a/rpcs3/Emu/Cell/Modules/cellMic.h b/rpcs3/Emu/Cell/Modules/cellMic.h
index 10adb2df1d..483f8fdff5 100644
--- a/rpcs3/Emu/Cell/Modules/cellMic.h
+++ b/rpcs3/Emu/Cell/Modules/cellMic.h
@@ -121,8 +121,7 @@ enum CellMicType : s32
 
 enum
 {
-	MaxNumMicInputs = 8,
-	CELL_MAX_MICS = MaxNumMicInputs,
+	CELL_MAX_MICS = 8,
 	MAX_MICS_PERMISSABLE = 4,
 
 	NullDeviceID = -1,
@@ -198,6 +197,8 @@ public:
 
 	u32 read_bytes(u8* buf, const u32 size)
 	{
+		ensure(buf);
+
 		u32 to_read = size > m_used ? m_used : size;
 		if (!to_read)
 			return 0;