From: Marcin Slusarz <marcin.slusarz@gmail.com>
Date: Sun, 25 Nov 2012 22:02:28 +0000 (+0100)
Subject: drm/nouveau: unpin pushbuffer bo before destroying it
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=124ea297c8f0e0a3a567af0894fdbe05caaf80ec;p=openwrt%2Fstaging%2Fblogic.git

drm/nouveau: unpin pushbuffer bo before destroying it

Fixes GART leak (as accounted by nouveau_drm.gem.gart_available).

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---

diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c b/drivers/gpu/drm/nouveau/nouveau_chan.c
index 1363578bf945..174300b6a02e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_chan.c
+++ b/drivers/gpu/drm/nouveau/nouveau_chan.c
@@ -76,6 +76,8 @@ nouveau_channel_del(struct nouveau_channel **pchan)
 		nouveau_object_del(client, NVDRM_DEVICE, chan->push.handle);
 		nouveau_bo_vma_del(chan->push.buffer, &chan->push.vma);
 		nouveau_bo_unmap(chan->push.buffer);
+		if (chan->push.buffer && chan->push.buffer->pin_refcnt)
+			nouveau_bo_unpin(chan->push.buffer);
 		nouveau_bo_ref(NULL, &chan->push.buffer);
 		kfree(chan);
 	}