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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-07-13 20:34:45 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2016-08-04 10:53:18 +0300 |
| commit | c45eb4fed12d278d3619f1904885bd0d7bcbf036 (patch) | |
| tree | e08984473729a37531fb800154b48394b9a4a519 /drivers/tty/serial/apbuart.c | |
| parent | a7b4667a00025ac28300737c868bd4818b6d8c4d (diff) | |
| download | linux-c45eb4fed12d278d3619f1904885bd0d7bcbf036.tar.xz | |
drm/i915/fbdev: Check for the framebuffer before use
If the fbdev probing fails, and in our error path we fail to clear the
dev_priv->fbdev, then we can try and use a dangling fbdev pointer, and
in particular a NULL fb. This could also happen in pathological cases
where we try to operate on the fbdev prior to it being probed.
Reported-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1468431285-28264-2-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
(cherry picked from commit 6bc265424df02f8162f4a17a37e4982e1c64460e)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/tty/serial/apbuart.c')
0 files changed, 0 insertions, 0 deletions