diff --git a/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp b/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
index 467edadc7e0..5f2c75ed552 100644
--- a/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
+++ b/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
@@ -279,9 +279,9 @@ void X86AsmBackend::relaxInstruction(const MCInst &Inst, MCInst &Res) const {
   Res.setOpcode(RelaxedOp);
 }
 
-/// writeNopData - Write optimal nops to the output file for the \p Count
-/// bytes.  This returns the number of bytes written.  It may return 0 if
-/// the \p Count is more than the maximum optimal nops.
+/// \brief Write a sequence of optimal nops to the output, covering \p Count
+/// bytes.
+/// \return - true on success, false on failure
 bool X86AsmBackend::writeNopData(uint64_t Count, MCObjectWriter *OW) const {
   static const uint8_t Nops[10][10] = {
     // nop