[PATCH 5.4 84/90] iommu/virtio: Reverse arguments to list_add

[Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>]

From: Julia Lawall <Julia.Lawall@xxxxxxxx>

commit fb3637a113349f53830f7d6ca45891b7192cd28f upstream.

Elsewhere in the file, there is a list_for_each_entry with
&vdev->resv_regions as the second argument, suggesting that
&vdev->resv_regions is the list head.  So exchange the
arguments on the list_add call to put the list head in the
second argument.

Fixes: 2a5a31487445 ("iommu/virtio: Add probe request")
Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

Reviewed-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>
Link: https://lore.kernel.org/r/1588704467-13431-1-git-send-email-Julia.Lawall@xxxxxxxx
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>

---
 drivers/iommu/virtio-iommu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c
@@ -454,7 +454,7 @@ static int viommu_add_resv_mem(struct vi
 	if (!region)
 		return -ENOMEM;
 
-	list_add(&vdev->resv_regions, &region->list);
+	list_add(&region->list, &vdev->resv_regions);
 	return 0;
 }