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drm/fb_cma_helper: do not free fbdev if there is none

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If fbdev emulation is not in use (or not built-in), fb_helper.fbdev
is NULL. Don't call calling drm_fbdev_cma_defio_fini in this case.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161020003221.2941-2-stefan@agner.ch
This commit is contained in:
Stefan Agner 2016-10-19 17:32:19 -07:00 committed by Daniel Vetter
parent e3f56b2953
commit 41b9bb1b3b
1 changed files with 2 additions and 1 deletions
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1
drivers/gpu/drm/drm_fb_cma_helper.c
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@ -560,6 +560,7 @@ EXPORT_SYMBOL_GPL(drm_fbdev_cma_init);
void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma)
{
drm_fb_helper_unregister_fbi(&fbdev_cma->fb_helper);
if (fbdev_cma->fb_helper.fbdev)
drm_fbdev_cma_defio_fini(fbdev_cma->fb_helper.fbdev);
drm_fb_helper_release_fbi(&fbdev_cma->fb_helper);