[PATCH 3/7] unpack-trees: allow check_updates() to work on a different index

["Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>]

From: Elijah Newren <newren@gmail.com>

check_updates() previously assumed it was working on o->result.  We want
to use this function in combination with a different index_state, so
take the intended index_state as a parameter.

Signed-off-by: Elijah Newren <newren@gmail.com>
---
 unpack-trees.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/unpack-trees.c b/unpack-trees.c
index 0d0eec0221e..853d843b17a 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -357,12 +357,12 @@ static void report_collided_checkout(struct index_state *index)
 	string_list_clear(&list, 0);
 }
 
-static int check_updates(struct unpack_trees_options *o)
+static int check_updates(struct unpack_trees_options *o,
+			 struct index_state *index)
 {
 	unsigned cnt = 0;
 	int errs = 0;
 	struct progress *progress;
-	struct index_state *index = &o->result;
 	struct checkout state = CHECKOUT_INIT;
 	int i;
 
@@ -1667,7 +1667,7 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
 		}
 	}
 
-	ret = check_updates(o) ? (-2) : 0;
+	ret = check_updates(o, &o->result) ? (-2) : 0;
 	if (o->dst_index) {
 		move_index_extensions(&o->result, o->src_index);
 		if (!ret) {
-- 
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