linux-kernel - [097/156] drm/i915: fix small leak on overlay error path

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Date:	Tue, 30 Mar 2010 15:42:11 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Dan Carpenter <error27@...il.com>,
	Eric Anholt <eric@...olt.net>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [097/156] drm/i915: fix small leak on overlay error path

2.6.33-stable review patch.  If anyone has any objections, please let us know.

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

From: Dan Carpenter <error27@...il.com>

commit 915a428e43acfd05e4ffeaf40549b0cf163eebe2 upstream.

We should free "params" before returning.

Signed-off-by: Dan Carpenter <error27@...il.com>
Reviewed-by: Daniel Vetter <daniel@...ll.ch>
Signed-off-by: Eric Anholt <eric@...olt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/gpu/drm/i915/intel_overlay.c |   13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/i915/intel_overlay.c
+++ b/drivers/gpu/drm/i915/intel_overlay.c
@@ -1083,14 +1083,18 @@ int intel_overlay_put_image(struct drm_d
 
 	drmmode_obj = drm_mode_object_find(dev, put_image_rec->crtc_id,
                         DRM_MODE_OBJECT_CRTC);
-	if (!drmmode_obj)
-		return -ENOENT;
+	if (!drmmode_obj) {
+		ret = -ENOENT;
+		goto out_free;
+	}
 	crtc = to_intel_crtc(obj_to_crtc(drmmode_obj));
 
 	new_bo = drm_gem_object_lookup(dev, file_priv,
 			put_image_rec->bo_handle);
-	if (!new_bo)
-		return -ENOENT;
+	if (!new_bo) {
+		ret = -ENOENT;
+		goto out_free;
+	}
 
 	mutex_lock(&dev->mode_config.mutex);
 	mutex_lock(&dev->struct_mutex);
@@ -1180,6 +1184,7 @@ out_unlock:
 	mutex_unlock(&dev->struct_mutex);
 	mutex_unlock(&dev->mode_config.mutex);
 	drm_gem_object_unreference(new_bo);
+out_free:
 	kfree(params);
 
 	return ret;


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