Re: [PATCH] tracing/timerlat: Move hrtimer_init to timerlat_fd open()

Greg KH
2024-02-01T15:44:32Z

On Thu, Feb 01, 2024 at 04:13:39PM +0100, Daniel Bristot de Oliveira wrote:
> Currently, the timerlat's hrtimer is initialized at the first read of
> timerlat_fd, and destroyed at close(). It works, but it causes an error
> if the user program open() and close() the file without reading.

What error exactly happens? Userspace, or the kernel crashes?

thanks,

greg k-h