A value is only assigned to errno if NumRead equals -1, so do
not reason based on errno if NumRead has a different value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86046 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/MemoryBuffer.cpp b/lib/Support/MemoryBuffer.cpp
index d8b6b9f..88e2050 100644
--- a/lib/Support/MemoryBuffer.cpp
+++ b/lib/Support/MemoryBuffer.cpp
@@ -229,7 +229,7 @@
if (NumRead > 0) {
BytesLeft -= NumRead;
BufPtr += NumRead;
- } else if (errno == EINTR) {
+ } else if (NumRead == -1 && errno == EINTR) {
// try again
} else {
// error reading.