fbcon: Initialize ops->info early
authorThierry Reding <treding@nvidia.com>
Mon, 13 Nov 2017 17:16:31 +0000 (18:16 +0100)
committerBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Mon, 13 Nov 2017 17:16:31 +0000 (18:16 +0100)
commitd447ebf9c77b16effd8aca114d7d281639e3f77f
tree6d74797fdd593ffcfd425ba81290d12222d99010
parent6c78935777d12ead2d32adf3eb525a24faf02d04
fbcon: Initialize ops->info early

During console takeover, which happens for all DRM/KMS setups using the
fbdev helpers, fbcon_startup() is called before fbcon_init() and as a
result con2fb_acquire_newinfo() will not be called (info->fbcon_par was
set to non-NULL in fbcon_startup()) to assign ops->info.

This causes the cursor_timer_handler() to unreference a NULL pointer.

Avoid this by unconditionally assigning ops->info during fbcon_startup()
so that it will be available early, but keep the additional assignment
in con2fb_acquire_newinfo() to support console remapping at runtime.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
drivers/video/fbdev/core/fbcon.c