This v3 adds a patch to clear fb_info->mode before deleting a videomode through FBIOPUT_VSCREENINFO with FB_ACTIVATE_INV_MODE.
Patch 1 bounds mode sysfs output so show_modes() cannot advance the sysfs buffer offset past PAGE_SIZE. Patch 2 clears fb_info->mode before fb_delete_videomode() when it matches the mode being removed via the FBIOPUT_VSCREENINFO ioctl. Patch 3 serializes mode sysfs access with lock_fb_info(), including store_mode(), show_mode(), and show_modes(). Changes in v3: - Add patch to clear fb_info->mode in fb_set_var() INV_MODE path. Melbin K Mathew (3): fbdev: bound mode sysfs output to the sysfs buffer fbdev: clear fb_info->mode before deleting a videomode fbdev: serialize mode sysfs access with lock_fb_info() drivers/video/fbdev/core/fbmem.c | 5 ++- drivers/video/fbdev/core/fbsysfs.c | 59 ++++++++++++++++++++++++------ 2 files changed, 51 insertions(+), 13 deletions(-) -- 2.39.5
