commit 99a435901454cc6ca529a783486c83ffddadb110
from: Omar Polo <op@omarpolo.com>
date: Tue Dec 14 22:40:06 2021 UTC

fix walk fid check: look at fd not iomode to see if it was opened

commit - 87a818e80dd7b59d2ee3f9b1cdffc82d7c5c1b4c
commit + 99a435901454cc6ca529a783486c83ffddadb110
blob - 5519c0909c9c72e32d8fc7455e1aa62bc156dfe0
blob + d96512f4d3f0b986bb0893f1f08bd72d923556bd
--- client.c
+++ client.c
@@ -905,7 +905,7 @@ twalk(struct np_msg_header *hdr, const uint8_t *data, 
 		return;
 	}
 
-	if (f->iomode != 0) {
+	if (f->fd != -1) {
 		np_error(hdr->tag, "fid already opened for I/O");
 		return;
 	}