tree-wide: check if errno is greater then zero

gcc is confused by the common idiom of
  return errno ? -errno : -ESOMETHING
and thinks a positive value may be returned. Replace this condition
with errno > 0 to help gcc and avoid many spurious warnings. I filed
a gcc rfe a long time ago, but it hard to say if it will ever be
implemented [1].

Both conventions were used in the codebase, this change makes things
more consistent. This is a follow up to bcb161b0230f.

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61846

1 files changed, 1 insertions, 1 deletions

diff --git a/src/locale/localed.c b/src/locale/localed.c
index 5ca41331bd..8ab845eb80 100644
--- a/src/locale/localed.c
+++ b/src/locale/localed.c
@@ -539,7 +539,7 @@ static int read_next_mapping(const char* filename,
                 if (!fgets(line, sizeof(line), f)) {
 
                         if (ferror(f))
-                                return errno ? -errno : -EIO;
+                                return errno > 0 ? -errno : -EIO;
 
                         return 0;
                 }