diff options
Diffstat (limited to 'fs/ntfs')
| -rw-r--r-- | fs/ntfs/file.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c index dbbac5593106..621de369e6f8 100644 --- a/fs/ntfs/file.c +++ b/fs/ntfs/file.c @@ -2129,28 +2129,13 @@ static ssize_t ntfs_file_aio_write_nolock(struct kiocb *iocb, struct address_space *mapping = file->f_mapping; struct inode *inode = mapping->host; loff_t pos; - unsigned long seg; size_t count; /* after file limit checks */ ssize_t written, err; count = 0; - for (seg = 0; seg < nr_segs; seg++) { - const struct iovec *iv = &iov[seg]; - /* - * If any segment has a negative length, or the cumulative - * length ever wraps negative then return -EINVAL. - */ - count += iv->iov_len; - if (unlikely((ssize_t)(count|iv->iov_len) < 0)) - return -EINVAL; - if (access_ok(VERIFY_READ, iv->iov_base, iv->iov_len)) - continue; - if (!seg) - return -EFAULT; - nr_segs = seg; - count -= iv->iov_len; /* This segment is no good */ - break; - } + err = generic_segment_checks(iov, &nr_segs, &count, VERIFY_READ); + if (err) + return err; pos = *ppos; vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE); /* We can write back this queue in page reclaim. */ |