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drm/nouveau: handle backlight_device_register failure

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Found by smatch.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Marcin Slusarz 2013-01-27 17:13:52 +01:00 committed by Ben Skeggs
parent a441dbb1d6
commit b795016cd2
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/nouveau/nouveau_backlight.c
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@ -84,6 +84,8 @@ nv40_backlight_init(struct drm_connector *connector)
props.max_brightness = 31;
bd = backlight_device_register("nv_backlight", &connector->kdev, drm,
&nv40_bl_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
drm->backlight = bd;
bd->props.brightness = nv40_get_intensity(bd);
backlight_update_status(bd);