From: Guido Martínez <guido@vanguardiasur.com.ar>
Date: Tue, 17 Jun 2014 14:17:07 +0000 (-0300)
Subject: drm/tilcdc: panel: fix leak when unloading the module
X-Git-Tag: android-x86-4.4-r2~688^2~80
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=3a49012224ca9016658a831a327ff6a7fe5bb4f9;p=android-x86%2Fkernel.git

drm/tilcdc: panel: fix leak when unloading the module

The driver did not unregister the allocated framebuffer, which caused
memory leaks (and memory manager WARNs) when unloading. Also, the
framebuffer device under /dev still existed after unloading.

Add a call to drm_fbdev_cma_fini when unloading the module to prevent
both issues.

Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Tested-by: Darren Etheridge <detheridge@ti.com>
Cc: <stable@vger.kernel.org> #v3.9+
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index b20b69488dc9..490aee79e106 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -122,6 +122,7 @@ static int tilcdc_unload(struct drm_device *dev)
 	struct tilcdc_drm_private *priv = dev->dev_private;
 	struct tilcdc_module *mod, *cur;
 
+	drm_fbdev_cma_fini(priv->fbdev);
 	drm_kms_helper_poll_fini(dev);
 	drm_mode_config_cleanup(dev);
 	drm_vblank_cleanup(dev);