commit e7141c64d1d3afadff05331d1e4cc95f6ce40a54
author Alex Deymo <deymo@chromium.org> Fri Oct 17 14:03:01 2014 -0700
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Sat Oct 18 01:37:38 2014 +0000
tree 0f57de679e8be383e8defbec0a57b91d49d201ba
parent 97b6f5a3f847f6ad4495dcecc11346caad4ab611

update_engine: Log the errno when GetFilesystemSize fails

BUG=chromium:424716
TEST=emerge-link update_engine

Change-Id: I03f9cb75605ca7176c3e4e5c349d3cf1726c2857
Reviewed-on: https://chromium-review.googlesource.com/224115
Commit-Queue: Alex Deymo <deymo@chromium.org>
Tested-by: Alex Deymo <deymo@chromium.org>
Reviewed-by: David James <davidjames@chromium.org>

utils.cc

diff --git a/utils.cc b/utils.cc
index ab5b7f3..d7ece2d 100644
--- a/utils.cc
+++ b/utils.cc
@@ -667,7 +667,7 @@
                        int* out_block_count,
                        int* out_block_size) {
   int fd = HANDLE_EINTR(open(device.c_str(), O_RDONLY));
-  TEST_AND_RETURN_FALSE(fd >= 0);
+  TEST_AND_RETURN_FALSE_ERRNO(fd >= 0);
   ScopedFdCloser fd_closer(&fd);
   return GetFilesystemSizeFromFD(fd, out_block_count, out_block_size);
 }