On Thu, Jan 28, 2021 at 02:12:40PM +0100, Nicolas Saenz Julienne wrote: > Don't start/stop an stdio device that might have been already freed. > > Signed-off-by: Nicolas Saenz Julienne <nsaenzjulie...@suse.de> > Fixes: 70c2525c0d3c ("IOMUX: Stop dropped consoles")
... > + /* > + * TODO: This is a workaround to avoid accessing freed memory: > + * console_stop() might be called on an stdio_dev that has already been > + * de-registered, due to the fact that stdio_deregister_dev() > + * doesn't update the global console_devices array. > + */ I see now. I think I have experienced this issue from time to time. I will look at it. Tom, Simon, please hold on applying these for a while. > + if (!stdio_valid(sdev)) > + return false; -- With Best Regards, Andy Shevchenko