From: Anand Jain <anand.jain@xxxxxxxxxx>
Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
---
debug-tree.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/debug-tree.c b/debug-tree.c
index 94ffd8e..0e391fc 100644
--- a/debug-tree.c
+++ b/debug-tree.c
@@ -30,7 +30,7 @@
static int print_usage(void)
{
- fprintf(stderr, "usage: debug-tree [ -e ] device\n");
+ fprintf(stderr, "usage: debug-tree [-derR] [-b <num>] device\n");
fprintf(stderr, "%s\n", BTRFS_BUILD_VERSION);
exit(1);
}
@@ -51,6 +51,8 @@ static void print_extents(struct btrfs_root *root, struct extent_buffer *eb)
btrfs_node_blockptr(eb, i),
size,
btrfs_node_ptr_generation(eb, i));
+ if(!next)
+ BUG();
if (btrfs_is_leaf(next) &&
btrfs_header_level(eb) != 1)
BUG();
--
1.7.1
--
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