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Btrfs: check return value of btrfs_alloc_path()

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Adding the check on the return value of btrfs_alloc_path() to several places.
And, some of callers are modified by this change.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Tsutomu Itoh
2011-03-01 06:48:31 +00:00
committed by root
parent c59021f846
commit c2db1073fd
4 changed files with 27 additions and 14 deletions
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11
fs/btrfs/compression.c
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@ -663,8 +663,9 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
atomic_inc(&cb->pending_bios);
if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {
btrfs_lookup_bio_sums(root, inode, comp_bio,
sums);
ret = btrfs_lookup_bio_sums(root, inode,
comp_bio, sums);
BUG_ON(ret);
}
sums += (comp_bio->bi_size + root->sectorsize - 1) /
root->sectorsize;
@ -689,8 +690,10 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, 0);
BUG_ON(ret);
if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM))
btrfs_lookup_bio_sums(root, inode, comp_bio, sums);
if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) {
ret = btrfs_lookup_bio_sums(root, inode, comp_bio, sums);
BUG_ON(ret);
}
ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0);
BUG_ON(ret);