[libgsystem] file-utils: fix wrong condition in open_nointr (open returns -1 on error)

[Colin Walters <walters src gnome org>]

commit 7c204267a38449de9d98c2c387961563c18ba550
Author: Thomas Haller <thaller redhat com>
Date:   Thu Oct 31 17:53:18 2013 +0100

    file-utils: fix wrong condition in open_nointr (open returns -1 on error)
    
    This error was found by running Coverity.
    
    Signed-off-by: Thomas Haller <thaller redhat com>

 gsystem-file-utils.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gsystem-file-utils.c b/gsystem-file-utils.c
index ff97e19..96b317a 100644
--- a/gsystem-file-utils.c
+++ b/gsystem-file-utils.c
@@ -64,7 +64,7 @@ open_nointr (const char *path, int flags, mode_t mode)
   int res;
   do
     res = open (path, flags, mode);
-  while (G_UNLIKELY (res != 0 && errno == EINTR));
+  while (G_UNLIKELY (res == -1 && errno == EINTR));
   return res;
 }