diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2009-11-27 13:06:56 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-18 14:05:44 -0800 |
| commit | 452a68706c276224ce1c91fff9ca88158d53c426 (patch) | |
| tree | a0c81f20196cdcc0b694f1e24b79b0f8ddc7007f /drivers/i2c | |
| parent | 21fc7b8d8c49b0f6ce7a45ae44361d31e93e629a (diff) | |
drm/i915: Avoid NULL dereference with component_only tv_modes
commit d271817baecbccb47da0d9f28c285a0dae8a06b7 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c')
0 files changed, 0 insertions, 0 deletions