From f60b1b49f6f72abb8bedfd49b758773bbda043c8 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 5 Oct 2012 16:53:34 -0400 Subject: [PATCH] Btrfs: fix page leakage Alloc_dummy_extent_buffer will not free the first page in the eb array if we fail to allocate a page, fix this. Thanks, Reported-by: David Sterba Signed-off-by: Josef Bacik --- fs/btrfs/extent_io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 7dc69b3..64dc93f 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4104,7 +4104,7 @@ struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long len) return eb; err: - for (i--; i > 0; i--) + for (i--; i >= 0; i--) __free_page(eb->pages[i]); __free_extent_buffer(eb); return NULL; -- 2.7.4