[PATCH 2/2] hfsplus: add a check for hfs_bnode_find

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hfs_brec_update_parent misses a check for hfs_bnode_find and may miss
the failure.
Add a check for it like what is done in again.

Signed-off-by: Chuhong Yuan <hslester96@xxxxxxxxx>
---
 fs/hfsplus/brec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c
index 1918544a7871..22bada8288c4 100644
--- a/fs/hfsplus/brec.c
+++ b/fs/hfsplus/brec.c
@@ -434,6 +434,8 @@ static int hfs_brec_update_parent(struct hfs_find_data *fd)
 			new_node->parent = tree->root;
 		}
 		fd->bnode = hfs_bnode_find(tree, new_node->parent);
+		if (IS_ERR(fd->bnode))
+			return PTR_ERR(fd->bnode);
 		/* create index key and entry */
 		hfs_bnode_read_key(new_node, fd->search_key, 14);
 		cnid = cpu_to_be32(new_node->this);
-- 
2.20.1




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