From: Chris Wright <chrisw@sous-sol.org>
Date: Fri, 17 Apr 2009 01:18:55 +0000 (+0000)
Subject: drm/i915: fix up error path leak in i915_cmdbuffer
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=355d7f370b51bbb6f31aaf9f98861057e1e6bbb2;p=deliverable%2Flinux.git

drm/i915: fix up error path leak in i915_cmdbuffer

Commit 201361a5 introduces a leak when unwinding on error.  Reorder
unwind, and eliminate leak.

Cc: Eric Anholt <eric@anholt.net>
Cc: Keith Packard <keithp@keithp.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
[anholt: fixed uninit variable use introduced in original patch]
Signed-off-by: Eric Anholt <eric@anholt.net>
---

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 272614389c02..051134c56aef 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -713,18 +713,18 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
 	mutex_unlock(&dev->struct_mutex);
 	if (ret) {
 		DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
-		goto fail_batch_free;
+		goto fail_clip_free;
 	}
 
 	if (sarea_priv)
 		sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
 
-fail_batch_free:
-	drm_free(batch_data, cmdbuf->sz, DRM_MEM_DRIVER);
 fail_clip_free:
 	drm_free(cliprects,
 		 cmdbuf->num_cliprects * sizeof(struct drm_clip_rect),
 		 DRM_MEM_DRIVER);
+fail_batch_free:
+	drm_free(batch_data, cmdbuf->sz, DRM_MEM_DRIVER);
 
 	return ret;
 }