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Commit 57506d50 authored by Qinghuang Feng's avatar Qinghuang Feng Committed by Chris Mason
Browse files

Btrfs: check return value for kthread_run() correctly 



kthread_run() returns the kthread or ERR_PTR(-ENOMEM), not NULL.

Signed-off-by: default avatarQinghuang Feng <qhfeng.kernel@gmail.com>
Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent 119e10cf

fs/btrfs/disk-io.c

+2 −2
Original line number Diff line number Diff line
@@ -1739,13 +1739,13 @@ struct btrfs_root *open_ctree(struct super_block *sb, 
	fs_info->system_alloc_profile = fs_info->metadata_alloc_profile;

	fs_info->cleaner_kthread = kthread_run(cleaner_kthread, tree_root,

					       "btrfs-cleaner");

	if (!fs_info->cleaner_kthread)

	if (IS_ERR(fs_info->cleaner_kthread))

		goto fail_csum_root;



	fs_info->transaction_kthread = kthread_run(transaction_kthread,

						   tree_root,

						   "btrfs-transaction");

	if (!fs_info->transaction_kthread)

	if (IS_ERR(fs_info->transaction_kthread))

		goto fail_cleaner;



	if (btrfs_super_log_root(disk_super) != 0) {