[aravis] arvsystem: fix error in index comparison.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit df376e53bd4209ce2bc01059d4aed021b7814a99
Author: Emmanuel Pacaud <emmanuel pacaud lapp in2p3 fr>
Date:   Mon Sep 27 14:39:24 2010 +0200

    arvsystem: fix error in index comparison.

 src/arvsystem.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/arvsystem.c b/src/arvsystem.c
index 944ead5..0722fe7 100644
--- a/src/arvsystem.c
+++ b/src/arvsystem.c
@@ -92,7 +92,7 @@ arv_get_device_id (unsigned int index)
 		interface = interfaces[i].get_interface_instance ();
 		n_devices = arv_interface_get_n_devices (interface);
 
-		if (index - offset <= n_devices)
+		if (index - offset < n_devices)
 			return arv_interface_get_device_id (interface, index - offset);
 
 		offset += n_devices;