From: Duncan Sands <baldrick@free.fr>
Date: Tue, 3 Nov 2009 19:10:22 +0000 (+0000)
Subject: Make this code more robust by not thinking we are making progress
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=954cb43c8075a66390de9357595ca6069d86941c;p=oota-llvm.git

Make this code more robust by not thinking we are making progress
if zero bytes were read.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85922 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Support/MemoryBuffer.cpp b/lib/Support/MemoryBuffer.cpp
index e35c626c408..d8b6b9f76fe 100644
--- a/lib/Support/MemoryBuffer.cpp
+++ b/lib/Support/MemoryBuffer.cpp
@@ -226,7 +226,7 @@ MemoryBuffer *MemoryBuffer::getFile(const char *Filename, std::string *ErrStr,
   size_t BytesLeft = FileSize;
   while (BytesLeft) {
     ssize_t NumRead = ::read(FD, BufPtr, BytesLeft);
-    if (NumRead != -1) {
+    if (NumRead > 0) {
       BytesLeft -= NumRead;
       BufPtr += NumRead;
     } else if (errno == EINTR) {