From 80386d1085f3110cd6e3fbf80337887bf121c564 Mon Sep 17 00:00:00 2001
From: Daniel Krebs <github@daniel-krebs.net>
Date: Tue, 24 Apr 2018 13:11:25 +0200
Subject: [PATCH] vfio: correctly set container on group

---
 fpga/include/villas/kernel/vfio.hpp | 2 +-
 fpga/lib/kernel/vfio.cpp            | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/fpga/include/villas/kernel/vfio.hpp b/fpga/include/villas/kernel/vfio.hpp
index 1a09e2e16..473873d04 100644
--- a/fpga/include/villas/kernel/vfio.hpp
+++ b/fpga/include/villas/kernel/vfio.hpp
@@ -91,7 +91,7 @@ public:
 	~VfioGroup();
 
 	static std::unique_ptr<VfioGroup>
-	attach(const VfioContainer& container, int groupIndex);
+	attach(VfioContainer& container, int groupIndex);
 
 private:
 	/// VFIO group file descriptor
diff --git a/fpga/lib/kernel/vfio.cpp b/fpga/lib/kernel/vfio.cpp
index 67cc6d19e..2bf90b590 100644
--- a/fpga/lib/kernel/vfio.cpp
+++ b/fpga/lib/kernel/vfio.cpp
@@ -743,10 +743,12 @@ VfioGroup::~VfioGroup()
 
 
 std::unique_ptr<VfioGroup>
-VfioGroup::attach(const VfioContainer& container, int groupIndex)
+VfioGroup::attach(VfioContainer& container, int groupIndex)
 {
 	std::unique_ptr<VfioGroup> group { new VfioGroup(groupIndex) };
 
+	group->container = &container;
+
 	/* Open group fd */
 	std::stringstream groupPath;
 	groupPath << VFIO_PATH