fnt2fon: janitorial IgnoredReturnValues.

[Lionel Debroux]

---
 tools/fnt2fon.c |   18 +++++++++++-------
 1 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/tools/fnt2fon.c b/tools/fnt2fon.c
index 3f82fd9..e63aca6 100644
--- a/tools/fnt2fon.c
+++ b/tools/fnt2fon.c
@@ -118,6 +118,17 @@ int main(int argc, char **argv)
         exit(1);
     }
 
+     // Setup cleanup functions.
+    if (   (atexit( cleanup_files ) != 0)
+        || (signal( SIGTERM, exit_on_signal ) == SIG_ERR)
+        || (signal( SIGINT, exit_on_signal ) == SIG_ERR)
+#ifdef SIGHUP
+        || (signal( SIGHUP, exit_on_signal ) == SIG_ERR)
+#endif
+       ) {
+        fprintf(stderr, "Cannot initialize cleanup\n");
+    }
+
     num_files = argc - 2;
     file_lens = malloc(num_files * sizeof(int));
     for(i = 0; i < num_files; i++) {
@@ -190,13 +201,6 @@ int main(int argc, char **argv)
     fontdir_off = (non_resident_name_off + non_resident_name_len + 15) & ~0xf;
     font_off = (fontdir_off + fontdir_len + 15) & ~0x0f;
 
-    atexit( cleanup_files );
-    signal( SIGTERM, exit_on_signal );
-    signal( SIGINT, exit_on_signal );
-#ifdef SIGHUP
-    signal( SIGHUP, exit_on_signal );
-#endif
-
     output_file = argv[argc - 1];
     ofp = fopen(output_file, "wb");
 
-- 
1.5.2.4


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