diff options
| author | Eugeni Dodonov <eugeni.dodonov@intel.com> | 2012-05-09 18:37:12 (GMT) |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-05-19 20:39:44 (GMT) |
| commit | 5826eca5ac58469a704984bceaebfda5bcb383db (patch) | |
| tree | 01596043830eec5a913b73c818aef31ce0b5f6db /drivers/gpu/drm/i915/intel_display.c | |
| parent | 461bc9b587389586edf9315b337fb136f33594ad (diff) | |
| download | linux-fsl-qoriq-5826eca5ac58469a704984bceaebfda5bcb383db.tar.xz | |
drm/i915: properly check for pipe count
As suggested by Chris Wilson and Daniel Vetter, this chunk of code can be
simplified with a more simple check.
Also, as noticed by Jesse Barnes, it is worth mentioning that plane is an
enum and num_pipe is an int, so we could be more paranoid here about those
validation checks eventually.
CC: Daniel Vetter <daniel.vetter@ffwll.ch>
CC: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 45b93a0..6b93d4a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1980,16 +1980,10 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, return 0; } - switch (intel_crtc->plane) { - case 0: - case 1: - break; - case 2: - if (IS_IVYBRIDGE(dev)) - break; - /* fall through otherwise */ - default: - DRM_ERROR("no plane for crtc\n"); + if(intel_crtc->plane > dev_priv->num_pipe) { + DRM_ERROR("no plane for crtc: plane %d, num_pipes %d\n", + intel_crtc->plane, + dev_priv->num_pipe); return -EINVAL; } |