From: Dan Carpenter <error27@gmail.com>
To: linux-btrfs@vger.kernel.org
Cc: Yan Zheng <zheng.yan@oracle.com>, Josef Bacik <josef@redhat.com>,
Jens Axboe <jens.axboe@oracle.com>,
Christoph Hellwig <hch@lst.de>,
Chris Mason <chris.mason@oracle.com>,
kernel-janitors@vger.kernel.org
Subject: [patch 3/11] btrfs: handle kzalloc() failure in open_ctree()
Date: Sat, 29 May 2010 11:43:07 +0200 [thread overview]
Message-ID: <20100529094307.GD5483@bicker> (raw)
Unwind and return -ENOMEM if the allocation fails here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index f3b287c..73895ba 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1941,8 +1941,11 @@ struct btrfs_root *open_ctree(struct super_block *sb,
btrfs_level_size(tree_root,
btrfs_super_log_root_level(disk_super));
- log_tree_root = kzalloc(sizeof(struct btrfs_root),
- GFP_NOFS);
+ log_tree_root = kzalloc(sizeof(struct btrfs_root), GFP_NOFS);
+ if (!log_tree_root) {
+ err = -ENOMEM;
+ goto fail_trans_kthread;
+ }
__setup_root(nodesize, leafsize, sectorsize, stripesize,
log_tree_root, fs_info, BTRFS_TREE_LOG_OBJECTID);
reply other threads:[~2010-05-29 9:43 UTC|newest]
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