Minor code simplification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104959 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index 93428f5..bb72dfb 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -427,10 +427,9 @@
 void raw_fd_ostream::write_impl(const char *Ptr, size_t Size) {
   assert(FD >= 0 && "File already closed.");
   pos += Size;
-  ssize_t ret;
 
   do {
-    ret = ::write(FD, Ptr, Size);
+    ssize_t ret = ::write(FD, Ptr, Size);
 
     if (ret < 0) {
       // If it's a recoverable error, swallow it and retry the write.