[aravis] genicam: fix typo in arv_gc_enumeration_get_available_int_values.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit 89b756f6a24d21d8503d179a7e8a106f97bc08a5
Author: Emmanuel Pacaud <emmanuel gnome org>
Date:   Wed May 30 22:07:43 2012 +0200

    genicam: fix typo in arv_gc_enumeration_get_available_int_values.

 src/arvgcenumeration.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/arvgcenumeration.c b/src/arvgcenumeration.c
index 113d882..d23a254 100644
--- a/src/arvgcenumeration.c
+++ b/src/arvgcenumeration.c
@@ -220,7 +220,7 @@ arv_gc_enumeration_get_available_int_values (ArvGcEnumeration *enumeration, guin
 	*n_values = 0;
 
 	g_return_val_if_fail (ARV_IS_GC_ENUMERATION (enumeration), NULL);
-	g_return_val_if_fail (error == NULL || *error != NULL, NULL);
+	g_return_val_if_fail (error == NULL || *error == NULL, NULL);
 
 	entries = arv_gc_enumeration_get_entries (enumeration);