From 7a0a30f62665ba85fa6e74ec3d9541bcafec34ad Mon Sep 17 00:00:00 2001
From: Daniel Beer <dlbeer@gmail.com>
Date: Wed, 7 Sep 2011 08:18:00 +1200
Subject: [PATCH] usb_bulk_read: may return 0 on timeout.

Pointed out by Jasper Lievisse Adriaanse <jasper@openbsd.org>.
---
 olimex.c | 2 +-
 rf2500.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/olimex.c b/olimex.c
index acf63d7..46b4da4 100644
--- a/olimex.c
+++ b/olimex.c
@@ -272,7 +272,7 @@ transport_t olimex_open(const char *devpath, const char *requested_serial)
 	/* Flush out lingering data */
 	while (usb_bulk_read(tr->handle, tr->in_ep,
 			     buf, sizeof(buf),
-			     100) >= 0);
+			     100) > 0);
 
 	return (transport_t)tr;
 }
diff --git a/rf2500.c b/rf2500.c
index c3772e3..05007e4 100644
--- a/rf2500.c
+++ b/rf2500.c
@@ -231,7 +231,7 @@ transport_t rf2500_open(const char *devpath, const char *requested_serial)
 #ifndef __APPLE__
 	while (usb_bulk_read(tr->handle, USB_FET_IN_EP,
 			     buf, sizeof(buf),
-			     100) >= 0);
+			     100) > 0);
 #endif
 
 	return (transport_t)tr;