Don't close a wtap that you don't have open in the first place.

Change-Id: I4d9d539957d06cb3568df287eb36ecc34677373f
Reviewed-on: https://code.wireshark.org/review/21170
Reviewed-by: Guy Harris <guy@alum.mit.edu>

1 files changed, 2 insertions, 1 deletions

diff --git a/editcap.c b/editcap.c
index 7d1e2a40c5..5efa2cbc8f 100644
--- a/editcap.c
+++ b/editcap.c
@@ -1906,7 +1906,8 @@ clean_exit:
     wtap_block_array_free(shb_hdrs);
     wtap_block_array_free(nrb_hdrs);
     g_free(idb_inf);
-    wtap_close(wth);
+    if (wth != NULL)
+        wtap_close(wth);
     wtap_cleanup();
     free_progdirs();
 #ifdef HAVE_PLUGINS