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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2009-11-27 13:06:56 +0000 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-11-30 15:16:32 -0800 |
| commit | d271817baecbccb47da0d9f28c285a0dae8a06b7 (patch) | |
| tree | edf7c1cd1efbc4b11df15d798348f8313468089c /drivers/char | |
| parent | 9bedb9743fd906e4160468663ee6e1bbdc4412b8 (diff) | |
| download | kernel-crypto-d271817baecbccb47da0d9f28c285a0dae8a06b7.tar.gz kernel-crypto-d271817baecbccb47da0d9f28c285a0dae8a06b7.tar.xz kernel-crypto-d271817baecbccb47da0d9f28c285a0dae8a06b7.zip | |
drm/i915: Avoid NULL dereference with component_only tv_modes
In commit d2d9f2324, the guard for a valid video mode was removed. This
caused the regression:
kernel crash during kms graphic boot on Intel GM4500 platform
https://bugzilla.redhat.com/show_bug.cgi?id=540218
This patches changes the logic slightly not to rely on a coupled
variable, but to just check whether the video_modes is valid before
dereferencing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Zhenyu Wang <zhenyu.z.wang@intel.com>
[ickle: Actually reference the correct bug report]
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/char')
0 files changed, 0 insertions, 0 deletions