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From:   Cindy Lu <lulu@redhat.com>
To:     lulu@redhat.com, jasowang@redhat.com, mst@redhat.com,
        kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
        virtualization@lists.linux-foundation.org, netdev@vger.kernel.org,
        lingshan.zhu@intel.com
Cc:     stable@vger.kernel.org
Subject: [PATCH v3] vhost_vdpa: fix the problem in vhost_vdpa_set_config_call
Date:   Tue, 12 Jan 2021 13:36:29 +0800
Message-Id: <20210112053629.9853-1-lulu@redhat.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

In vhost_vdpa_set_config_call, the cb.private should be vhost_vdpa.
this cb.private will finally use in vhost_vdpa_config_cb as
vhost_vdpa. Fix this issue.

Fixes: 776f395004d82 ("vhost_vdpa: Support config interrupt in vdpa")
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Cindy Lu <lulu@redhat.com>
---
 drivers/vhost/vdpa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index ef688c8c0e0e..3fbb9c1f49da 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -319,7 +319,7 @@ static long vhost_vdpa_set_config_call(struct vhost_vdpa *v, u32 __user *argp)
 	struct eventfd_ctx *ctx;
 
 	cb.callback = vhost_vdpa_config_cb;
-	cb.private = v->vdpa;
+	cb.private = v;
 	if (copy_from_user(&fd, argp, sizeof(fd)))
 		return  -EFAULT;
 
-- 
2.21.3