commit f60b1b49f6f72abb8bedfd49b758773bbda043c8
author Josef Bacik <jbacik@fusionio.com> Fri Oct 05 16:53:34 2012 -0400
committer Chris Mason <chris.mason@fusionio.com> Tue Oct 09 09:20:56 2012 -0400
tree 34e972598969d614eca15082588e8b9ee38d8471
parent 4804b38293c020e7a2c841e86402f456c19d934d

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 <dave@jikos.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

fs/btrfs/extent_io.c

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 @@
 
 	return eb;
 err:
-	for (i--; i > 0; i--)
+	for (i--; i >= 0; i--)
 		__free_page(eb->pages[i]);
 	__free_extent_buffer(eb);
 	return NULL;