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drm/sun4i: rgb: panel is an error pointer

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In case of an error, our pointer to the drm_panel structure attached to our
encoder will hold an error pointer, not a NULL pointer.

Make sure we check the right thing.

Fixes: 29e57fab97 ("drm: sun4i: Add RGB output")
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Maxime Ripard 2016-05-04 17:37:58 +02:00
parent 0bbbb00bda
commit 0de6e914a0
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/sun4i/sun4i_rgb.c
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@ -217,7 +217,7 @@ int sun4i_rgb_init(struct drm_device *drm)
int ret; int ret;
/* If we don't have a panel, there's no point in going on */ /* If we don't have a panel, there's no point in going on */
if (!tcon->panel) if (IS_ERR(tcon->panel))
return -ENODEV; return -ENODEV;
rgb = devm_kzalloc(drm->dev, sizeof(*rgb), GFP_KERNEL); rgb = devm_kzalloc(drm->dev, sizeof(*rgb), GFP_KERNEL);