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drm/exynos: add exception codes to exynos_drm_fbdev_create()

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This patch releases allocated resources correctly.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Inki Dae 2012-12-07 18:06:43 +09:00 committed by Inki Dae
parent db7e55ae52
commit 662aa6d763
1 changed files with 17 additions and 7 deletions
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24
drivers/gpu/drm/exynos/exynos_drm_fbdev.c
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@ -164,7 +164,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
exynos_gem_obj = exynos_drm_gem_create(dev, 0, size);
if (IS_ERR(exynos_gem_obj)) {
ret = PTR_ERR(exynos_gem_obj);
goto out;
goto err_release_framebuffer;
}
exynos_fbdev->exynos_gem_obj = exynos_gem_obj;
@ -174,7 +174,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
if (IS_ERR_OR_NULL(helper->fb)) {
DRM_ERROR("failed to create drm framebuffer.\n");
ret = PTR_ERR(helper->fb);
goto out;
goto err_destroy_gem;
}
helper->fbdev = fbi;
@ -186,14 +186,24 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
ret = fb_alloc_cmap(&fbi->cmap, 256, 0);
if (ret) {
DRM_ERROR("failed to allocate cmap.\n");
goto out;
goto err_destroy_framebuffer;
}
ret = exynos_drm_fbdev_update(helper, helper->fb);
if (ret < 0) {
fb_dealloc_cmap(&fbi->cmap);
goto out;
}
if (ret < 0)
goto err_dealloc_cmap;
mutex_unlock(&dev->struct_mutex);
return ret;
err_dealloc_cmap:
fb_dealloc_cmap(&fbi->cmap);
err_destroy_framebuffer:
drm_framebuffer_cleanup(helper->fb);
err_destroy_gem:
exynos_drm_gem_destroy(exynos_gem_obj);
err_release_framebuffer:
framebuffer_release(fbi);
/*
* if failed, all resources allocated above would be released by