[PATCH] worktree: fix a sparse 'Using plain integer as NULL pointer' warning

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Signed-off-by: Ramsay Jones <ramsay@xxxxxxxxxxxxxxxxxxxx>
---

Hi Duy,

If you need to re-roll your 'nd/worktree-move' branch, could you
please squash this into the relevant patch [commit c49e92f5c
("worktree move: refuse to move worktrees with submodules", 12-11-2016)].

Also, one of the new tests introduced by commit 31a8f3066 ("worktree move:
new command", 12-11-2016), fails for me, thus:

  $ ./t2028-worktree-move.sh -i -v
  ...
  --- expected	2016-11-15 20:22:50.647241458 +0000
  +++ actual	2016-11-15 20:22:50.647241458 +0000
  @@ -1,3 +1,3 @@
   worktree /home/ramsay/git/t/trash directory.t2028-worktree-move
  -worktree /home/ramsay/git/t/trash directory.t2028-worktree-move/destination
   worktree /home/ramsay/git/t/trash directory.t2028-worktree-move/elsewhere
  +worktree /home/ramsay/git/t/trash directory.t2028-worktree-move/destination
  not ok 12 - move worktree
  #	
  #		git worktree move source destination &&
  #		test_path_is_missing source &&
  #		git worktree list --porcelain | grep "^worktree" >actual &&
  #		cat <<-EOF >expected &&
  #		worktree $TRASH_DIRECTORY
  #		worktree $TRASH_DIRECTORY/destination
  #		worktree $TRASH_DIRECTORY/elsewhere
  #		EOF
  #		test_cmp expected actual &&
  #		git -C destination log --format=%s >actual2 &&
  #		echo init >expected2 &&
  #		test_cmp expected2 actual2
  #	
  $ 

Is there an expectation that the submodules will be listed in
any particular order by 'git worktree list --porcelain' ?

Thanks!

ATB,
Ramsay Jones

 builtin/worktree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/builtin/worktree.c b/builtin/worktree.c
index e738142..abdf462 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -526,7 +526,7 @@ static int unlock_worktree(int ac, const char **av, const char *prefix)
 
 static void validate_no_submodules(const struct worktree *wt)
 {
-	struct index_state istate = {0};
+	struct index_state istate = { NULL };
 	int i, found_submodules = 0;
 
 	if (read_index_from(&istate, worktree_git_path(wt, "index")) > 0) {
-- 
2.10.0



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