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drm: plane: Check that the fb pixel format is supported by the plane

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Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Ville Syrjälä 2011-12-20 00:06:47 +02:00 committed by Dave Airlie
parent 22cd7c6258
commit 62443be626
1 changed files with 11 additions and 0 deletions
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11
drivers/gpu/drm/drm_crtc.c
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@ -1662,6 +1662,7 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
struct drm_framebuffer *fb;
int ret = 0;
unsigned int fb_width, fb_height;
int i;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
@ -1710,6 +1711,16 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
}
fb = obj_to_fb(obj);
/* Check whether this plane supports the fb pixel format. */
for (i = 0; i < plane->format_count; i++)
if (fb->pixel_format == plane->format_types[i])
break;
if (i == plane->format_count) {
DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
ret = -EINVAL;
goto out;
}
fb_width = fb->width << 16;
fb_height = fb->height << 16;