[PATCH 5/5] streaming: simplify attaching a filter

[John Keeping <john@keeping.me.uk>]

We are guaranteed that 'nst' is non-null because it is allocated with
xmalloc(), and in fact we rely on this three lines later by
unconditionally dereferencing it.

Signed-off-by: John Keeping <john@keeping.me.uk>
---
 streaming.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/streaming.c b/streaming.c
index d7c9f32..8a7135d 100644
--- a/streaming.c
+++ b/streaming.c
@@ -151,10 +151,7 @@ struct git_istream *open_istream(const unsigned char *sha1,
 	}
 	if (filter) {
 		/* Add "&& !is_null_stream_filter(filter)" for performance */
-		struct git_istream *nst = attach_stream_filter(st, filter);
-		if (!nst)
-			close_istream(st);
-		st = nst;
+		st = attach_stream_filter(st, filter);
 	}
 
 	*size = st->size;
-- 
1.9.rc0.187.g6292fff