提交 e5fffbac 编写于 作者: C chandan 提交者: Chris Mason

Btrfs: open_ctree: Fix possible memory leak

After reading one of chunk or tree root tree's root node from disk, if the
root node does not have EXTENT_BUFFER_UPTODATE flag set, we fail to release
the memory used by the root node. Fix this.
Signed-off-by: NChandan Rajendra <chandan@linux.vnet.ibm.com>
上级 d9a0540a
......@@ -2842,6 +2842,8 @@ int open_ctree(struct super_block *sb,
!extent_buffer_uptodate(chunk_root->node)) {
printk(KERN_ERR "BTRFS: failed to read chunk root on %s\n",
sb->s_id);
if (!IS_ERR(chunk_root->node))
free_extent_buffer(chunk_root->node);
chunk_root->node = NULL;
goto fail_tree_roots;
}
......@@ -2880,6 +2882,8 @@ int open_ctree(struct super_block *sb,
!extent_buffer_uptodate(tree_root->node)) {
printk(KERN_WARNING "BTRFS: failed to read tree root on %s\n",
sb->s_id);
if (!IS_ERR(tree_root->node))
free_extent_buffer(tree_root->node);
tree_root->node = NULL;
goto recovery_tree_root;
}
......
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