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Btrfs: handle kzalloc() failure in open_ctree() 

Unwind and return -ENOMEM if the allocation fails here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Dan Carpenter 2010-05-29 09:43:07 +00:00 committed by Chris Mason
parent fb4f6f910c
commit 676e4c8639
1 changed files with 5 additions and 2 deletions
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7
fs/btrfs/disk-io.c
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@ -1941,8 +1941,11 @@ struct btrfs_root *open_ctree(struct super_block *sb,
btrfs_level_size(tree_root, btrfs_level_size(tree_root,
btrfs_super_log_root_level(disk_super)); btrfs_super_log_root_level(disk_super));
log_tree_root = kzalloc(sizeof(struct btrfs_root), log_tree_root = kzalloc(sizeof(struct btrfs_root), GFP_NOFS);
GFP_NOFS); if (!log_tree_root) {
err = -ENOMEM;
goto fail_trans_kthread;
}
__setup_root(nodesize, leafsize, sectorsize, stripesize, __setup_root(nodesize, leafsize, sectorsize, stripesize,
log_tree_root, fs_info, BTRFS_TREE_LOG_OBJECTID); log_tree_root, fs_info, BTRFS_TREE_LOG_OBJECTID);