Hi Zheyu, On Sun, Oct 10, 2021 at 06:42:28AM +0000, Zheyu Ma wrote: > savagefb and some other drivers call kfree to free 'info->pixmap.addr' > even after calling unregister_framebuffer, which may cause double free. > > Fix this by setting 'fb_info->pixmap.addr' to NULL after kfree in > unregister_framebuffer.
This is a nice general way to fix it that benefits all drivers.
Applied to drm-misc-next as this is not an urgent fix.
Sam
