linux-kernel - [ 003/147] drm/i915: prevent possible pin leak on error path

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Date:	Sun, 14 Oct 2012 15:35:36 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Eugeni Dodonov <eugeni.dodonov@...el.com>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
Subject: [ 003/147] drm/i915: prevent possible pin leak on error path

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eugeni Dodonov <eugeni.dodonov@...el.com>

commit ab3951eb74e7c33a2f5b7b64d72e82f1eea61571 upstream.

We should not hit this under any sane conditions, but still, this does not
looks right.

CC: Chris Wilson <chris@...is-wilson.co.uk>
CC: Daniel Vetter <daniel.vetter@...ll.ch>
Reported-by: Herton Ronaldo Krzesinski <herton.krzesinski@...onical.com>
Reviewed-by: Chris Wlison <chris@...is-wilson.co.uk>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@...el.com>
Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/gpu/drm/i915/intel_display.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 17020cd..2e1f28f 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6317,7 +6317,7 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
 	default:
 		WARN_ONCE(1, "unknown plane in flip command\n");
 		ret = -ENODEV;
-		goto err;
+		goto err_unpin;
 	}
 
 	ret = intel_ring_begin(ring, 4);


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