[PATCH 3/7] util: make a copy of iova_tree_remove_parameter

["Eugenio Pérez" <eperezma@redhat.com>]

It's convenient to call iova_tree_remove from a map returned from
iova_tree_find or iova_tree_find_iova. With the current code this is not
possible, since we will free it, and then we will try to search for it
again.

Fix it making a copy of the argument. Not applying a fixes tag, since
there is no use like that at the moment.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
 util/iova-tree.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/util/iova-tree.c b/util/iova-tree.c
index fee530a579..713e3edd7b 100644
--- a/util/iova-tree.c
+++ b/util/iova-tree.c
@@ -166,9 +166,11 @@ void iova_tree_foreach(IOVATree *tree, iova_tree_iterator iterator)
 
 void iova_tree_remove(IOVATree *tree, const DMAMap *map)
 {
+    /* Just in case caller is calling iova_tree_remove from a result of find */
+    const DMAMap needle = *map;
     const DMAMap *overlap;
 
-    while ((overlap = iova_tree_find(tree, map))) {
+    while ((overlap = iova_tree_find(tree, &needle))) {
         g_tree_remove(tree->tree, overlap);
     }
 }
-- 
2.31.1