aio: Fix crash in aio copy

Fix incorrect check for target as invalid filehandle.
e.g. stdin copy blah

Signed-off-by: Steve Bennett <steveb@workware.net.au>

1 files changed, 1 insertions, 1 deletions

diff --git a/jim-aio.c b/jim-aio.c
index 87834a7..1ac3b56 100644
--- a/jim-aio.c
+++ b/jim-aio.c
@@ -591,7 +591,7 @@ static int aio_cmd_copy(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
     jim_wide maxlen = JIM_WIDE_MAX;
     AioFile *outf = Jim_AioFile(interp, argv[0]);
 
-    if (outf->fp == NULL) {
+    if (outf == NULL) {
         return JIM_ERR;
     }