hppfs: hppfs_read_file() may return -ERROR

hppfs_read_file() may return (ssize_t) -ENOMEM, or -EFAULT.  When stored
in size_t 'count', these errors will not be noticed, a large value will be
added to *ppos.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Roel Kluin 2009-04-02 16:57:18 -07:00 committed by Linus Torvalds
parent 695f6ae0dc
commit 880fe76ee6

View File

@ -280,7 +280,12 @@ static ssize_t hppfs_read(struct file *file, char __user *buf, size_t count,
"errno = %d\n", err);
return err;
}
count = hppfs_read_file(hppfs->host_fd, buf, count);
err = hppfs_read_file(hppfs->host_fd, buf, count);
if (err < 0) {
printk(KERN_ERR "hppfs_read: read failed: %d\n", err);
return err;
}
count = err;
if (count > 0)
*ppos += count;
}