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| author |   Tsutomu Itoh <t-itoh@jp.fujitsu.com> | 2011-01-20 06:19:37 +0000 |
|---|---|---|
| committer |   Chris Mason <chris.mason@oracle.com> | 2011-02-01 07:17:27 -0500 |
| commit | 98d5dc13e7e74b77ca3b4c3cbded9f48d2dbbbb7 (patch) | |
| tree | 8e75f67b28b5b0d909483a06bb5258e0ba0c9789 /fs/btrfs/volumes.c | |
| parent | btrfs: checking NULL or not in some functions (diff) | |
| download | linux-dev-98d5dc13e7e74b77ca3b4c3cbded9f48d2dbbbb7.tar.xz linux-dev-98d5dc13e7e74b77ca3b4c3cbded9f48d2dbbbb7.zip | |
btrfs: fix return value check of btrfs_start_transaction()
The error check of btrfs_start_transaction() is added, and the mistake
of the error check on several places is corrected.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index f2d2f4ccc738..7cad59353b09 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1212,6 +1212,10 @@ static int btrfs_rm_dev_item(struct btrfs_root *root, return -ENOMEM; trans = btrfs_start_transaction(root, 0); + if (IS_ERR(trans)) { + btrfs_free_path(path); + return PTR_ERR(trans); + } key.objectid = BTRFS_DEV_ITEMS_OBJECTID; key.type = BTRFS_DEV_ITEM_KEY; key.offset = device->devid; @@ -1604,6 +1608,12 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) } trans = btrfs_start_transaction(root, 0); + if (IS_ERR(trans)) { + kfree(device); + ret = PTR_ERR(trans); + goto error; + } + lock_chunks(root); device->barriers = 1; @@ -1872,7 +1882,7 @@ static int btrfs_relocate_chunk(struct btrfs_root *root, return ret; trans = btrfs_start_transaction(root, 0); - BUG_ON(!trans); + BUG_ON(IS_ERR(trans)); lock_chunks(root); @@ -2046,7 +2056,7 @@ int btrfs_balance(struct btrfs_root *dev_root) BUG_ON(ret); trans = btrfs_start_transaction(dev_root, 0); - BUG_ON(!trans); + BUG_ON(IS_ERR(trans)); ret = btrfs_grow_device(trans, device, old_size); BUG_ON(ret); @@ -2212,6 +2222,11 @@ again: /* Shrinking succeeded, else we would be at "done". */ trans = btrfs_start_transaction(root, 0); + if (IS_ERR(trans)) { + ret = PTR_ERR(trans); + goto done; + } + lock_chunks(root); device->disk_total_bytes = new_size; |