On Fri, Jan 28, 2005 at 12:06:19PM -0700, Zwane Mwaikambo wrote:
> ===== drivers/oprofile/oprofile_files.c 1.7 vs edited =====
> --- 1.7/drivers/oprofile/oprofile_files.c 2005-01-04 19:48:23 -07:00
> +++ edited/drivers/oprofile/oprofile_files.c 2005-01-28 11:36:25 -07:00
> @@ -63,7 +63,9 @@ static struct file_operations pointer_si
>
> static ssize_t cpu_type_read(struct file * file, char __user * buf, size_t
> count, loff_t * offset)
> {
> - return oprofilefs_str_to_user(oprofile_ops.cpu_type, buf, count,
> offset);
> + if (oprofile_ops.cpu_type)
> + return oprofilefs_str_to_user(oprofile_ops.cpu_type, buf,
> count, offset);
> + return -EIO;
This is wrong: you need to investigate why .cpu_type isn't set: in
particular, it should have fallen back to timer mode.
oprofile_arch_init() should have returned -ENODEV, and that should have
set timer mode.
Unfortunately bkcvs seems out of date so I can't even look at this
myself.
john
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