vhost-vdpa: Fix the wrong input in config_cb

commit bcef9356fc2e1302daf373c83c826aa27954d128 upstream.

Fix the wrong input in for config_cb. In function vhost_vdpa_config_cb,
the input cb.private was used as struct vhost_vdpa, so the input was
wrong here, fix this issue

Fixes: 776f395004d8 ("vhost_vdpa: Support config interrupt in vdpa")
Signed-off-by: Cindy Lu <lulu@redhat.com>
Link: https://lore.kernel.org/r/20210929090933.20465-1-lulu@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index c4d53ff..fdeb20f 100644 (file)
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -325,7 +325,7 @@ 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;