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| author | Thierry Reding <treding@nvidia.com> | 2017-11-13 18:16:31 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2017-11-13 18:16:31 +0100 |
| commit | d447ebf9c77b16effd8aca114d7d281639e3f77f (patch) | |
| tree | 6d74797fdd593ffcfd425ba81290d12222d99010 /drivers | |
| parent | 6c78935777d12ead2d32adf3eb525a24faf02d04 (diff) | |
| download | linux-stable-d447ebf9c77b16effd8aca114d7d281639e3f77f.tar.gz linux-stable-d447ebf9c77b16effd8aca114d7d281639e3f77f.tar.bz2 linux-stable-d447ebf9c77b16effd8aca114d7d281639e3f77f.zip | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/fbdev/core/fbcon.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index 3b4a96379128..929ca472c524 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -962,6 +962,7 @@ static const char *fbcon_startup(void) ops->graphics = 1; ops->cur_rotate = -1; ops->cur_blink_jiffies = HZ / 5; + ops->info = info; info->fbcon_par = ops; if (initial_rotation != -1) p->con_rotate = initial_rotation; |