[PATCH 1/3] hfs: Unmap the page in the "fail_page" label

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Several paths within hfs_btree_open() jump to the "fail_page" label
where put_page() is called while the page is still mapped.

Call kunmap() to unmap the page soon before put_page().

Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@xxxxxxxxx>
---
 fs/hfs/btree.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c
index 19017d296173..56c6782436e9 100644
--- a/fs/hfs/btree.c
+++ b/fs/hfs/btree.c
@@ -124,6 +124,7 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke
 	return tree;
 
 fail_page:
+	kunmap(page);
 	put_page(page);
 free_inode:
 	tree->inode->i_mapping->a_ops = &hfs_aops;
-- 
2.37.1




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