diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-15 13:45:59 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-15 13:45:59 +0200 |
commit | 91d0322bef047e2916b3e52741411bffc63929cb (patch) | |
tree | 44c4fd13cc17755a6db8a3d70cffb86e57a838dc /arch/s390/hypfs | |
parent | 065cb3dfe24978651caedfa54da585388ad15dde (diff) | |
parent | 50515af207d410c9f228380e529c56f43c3de0bd (diff) |
Merge branch 'linus' into x86/urgent
Diffstat (limited to 'arch/s390/hypfs')
-rw-r--r-- | arch/s390/hypfs/inode.c | 29 |
1 files changed, 10 insertions, 19 deletions
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index 4b010ff814c..7383781f3e6 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -150,33 +150,24 @@ static ssize_t hypfs_aio_read(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t offset) { char *data; - size_t len; + ssize_t ret; struct file *filp = iocb->ki_filp; /* XXX: temporary */ char __user *buf = iov[0].iov_base; size_t count = iov[0].iov_len; - if (nr_segs != 1) { - count = -EINVAL; - goto out; - } + if (nr_segs != 1) + return -EINVAL; data = filp->private_data; - len = strlen(data); - if (offset > len) { - count = 0; - goto out; - } - if (count > len - offset) - count = len - offset; - if (copy_to_user(buf, data + offset, count)) { - count = -EFAULT; - goto out; - } - iocb->ki_pos += count; + ret = simple_read_from_buffer(buf, count, &offset, data, strlen(data)); + if (ret <= 0) + return ret; + + iocb->ki_pos += ret; file_accessed(filp); -out: - return count; + + return ret; } static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t offset) |