Index: lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.h
===================================================================
--- lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.h
+++ lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.h
@@ -41,16 +41,14 @@
   virtual Status ReadDBR();
   virtual Status WriteDBR();
 
-  virtual void *GetGPRBuffer() { return nullptr; }
+  virtual void *GetGPRBuffer() = 0;
   virtual size_t GetGPRSize() {
     return GetRegisterInfoInterface().GetGPRSize();
   }
 
-  virtual void *GetFPRBuffer() { return nullptr; }
-  virtual size_t GetFPRSize() { return 0; }
+  virtual void *GetFPRBuffer() = 0;
 
-  virtual void *GetDBRBuffer() { return nullptr; }
-  virtual size_t GetDBRSize() { return 0; }
+  virtual void *GetDBRBuffer() = 0;
 
   virtual Status DoReadGPR(void *buf);
   virtual Status DoWriteGPR(void *buf);
Index: lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.cpp
===================================================================
--- lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.cpp
+++ lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.cpp
@@ -26,49 +26,31 @@
 
 Status NativeRegisterContextNetBSD::ReadGPR() {
   void *buf = GetGPRBuffer();
-  if (!buf)
-    return Status("GPR buffer is NULL");
-
   return DoReadGPR(buf);
 }
 
 Status NativeRegisterContextNetBSD::WriteGPR() {
   void *buf = GetGPRBuffer();
-  if (!buf)
-    return Status("GPR buffer is NULL");
-
   return DoWriteGPR(buf);
 }
 
 Status NativeRegisterContextNetBSD::ReadFPR() {
   void *buf = GetFPRBuffer();
-  if (!buf)
-    return Status("FPR buffer is NULL");
-
   return DoReadFPR(buf);
 }
 
 Status NativeRegisterContextNetBSD::WriteFPR() {
   void *buf = GetFPRBuffer();
-  if (!buf)
-    return Status("FPR buffer is NULL");
-
   return DoWriteFPR(buf);
 }
 
 Status NativeRegisterContextNetBSD::ReadDBR() {
   void *buf = GetDBRBuffer();
-  if (!buf)
-    return Status("DBR buffer is NULL");
-
   return DoReadDBR(buf);
 }
 
 Status NativeRegisterContextNetBSD::WriteDBR() {
   void *buf = GetDBRBuffer();
-  if (!buf)
-    return Status("DBR buffer is NULL");
-
   return DoWriteDBR(buf);
 }
 
Index: lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.h
===================================================================
--- lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.h
+++ lldb/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.h
@@ -67,9 +67,9 @@
   uint32_t NumSupportedHardwareWatchpoints() override;
 
 protected:
-  void *GetGPRBuffer() override { return &m_gpr_x86_64; }
-  void *GetFPRBuffer() override { return &m_fpr_x86_64; }
-  void *GetDBRBuffer() override { return &m_dbr_x86_64; }
+  void *GetGPRBuffer() { return &m_gpr_x86_64; }
+  void *GetFPRBuffer() { return &m_fpr_x86_64; }
+  void *GetDBRBuffer() { return &m_dbr_x86_64; }
 
 private:
   // Private member types.