drm/exynos: add error check routine in exynos_drm_open
When the exynos_drm_subdrv_open() returns error, the file_priv should be released and file->driver_priv set to NULL. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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@ -155,6 +155,7 @@ static int exynos_drm_unload(struct drm_device *dev)
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static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
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{
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struct drm_exynos_file_private *file_priv;
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int ret;
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file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
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if (!file_priv)
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@ -162,7 +163,13 @@ static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
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file->driver_priv = file_priv;
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return exynos_drm_subdrv_open(dev, file);
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ret = exynos_drm_subdrv_open(dev, file);
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if (ret) {
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kfree(file_priv);
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file->driver_priv = NULL;
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}
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return ret;
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}
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static void exynos_drm_preclose(struct drm_device *dev,
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