[PATCH weston] clients: fix errno handling

[Peter Hutterer]

clients/editor.c: In function ‘read_file’:
clients/editor.c:1578:16: warning: logical ‘or’ applied to non-boolean
constant [-Wlogical-op]
  errno = errsv || EINVAL;

This works in the shell, but not in C. Introduced in 411ffabbb56b

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
 clients/editor.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/clients/editor.c b/clients/editor.c
index f1dffe1..135dd9f 100644
--- a/clients/editor.c
+++ b/clients/editor.c
@@ -1575,7 +1575,8 @@ error:
 	if (fin)
 		fclose(fin);
 	free(buffer);
-	errno = errsv || EINVAL;
+	if (errsv == 0)
+		errno = EINVAL;
 
 	return NULL;
 }
-- 
2.9.3