Fix double close.

diff --git a/gpsbabel/magproto.c b/gpsbabel/magproto.c
index 9bad44098d8e46b96b1af0bb6c62ddad5fd127e6..c30b0174dab173407541b15611e2a47c86e62e5d 100644 (file)
--- a/gpsbabel/magproto.c
+++ b/gpsbabel/magproto.c
@@ -541,7 +541,9 @@ mag_deinit(void)
 {
        mag_handoff();
        termdeinit();
-       fclose(magfile_in);
+       if(magfile_in)
+               fclose(magfile_in);
+       magfile_in = NULL;
 }
 #if 0
 /*