Update the MemoryBuffer API to use ErrorOr.

llvm-svn: 212405

1 files changed, 4 insertions, 2 deletions

diff --git a/llvm/lib/Support/LockFileManager.cpp b/llvm/lib/Support/LockFileManager.cpp
index 681bae2ba18..3f224e0c588 100644
--- a/llvm/lib/Support/LockFileManager.cpp
+++ b/llvm/lib/Support/LockFileManager.cpp
@@ -33,11 +33,13 @@ Optional<std::pair<std::string, int> >
 LockFileManager::readLockFile(StringRef LockFileName) {
   // Read the owning host and PID out of the lock file. If it appears that the
   // owning process is dead, the lock file is invalid.
-  std::unique_ptr<MemoryBuffer> MB;
-  if (MemoryBuffer::getFile(LockFileName, MB)) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> MBOrErr =
+      MemoryBuffer::getFile(LockFileName);
+  if (!MBOrErr) {
     sys::fs::remove(LockFileName);
     return None;
   }
+  std::unique_ptr<MemoryBuffer> MB = std::move(MBOrErr.get());
 
   StringRef Hostname;
   StringRef PIDStr;