linux-kernel - [PATCH 4.2 018/110] drm: Correct arguments to list_tail

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Message-Id: <20151106191704.115530049@linuxfoundation.org>
Date:	Fri,  6 Nov 2015 11:18:25 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Maneet Singh <mmaneetsingh@...dia.com>,
	Sean Paul <seanpaul@...omium.org>,
	Daniel Stone <daniels@...labora.com>,
	Jani Nikula <jani.nikula@...el.com>,
	Dave Airlie <airlied@...il.com>
Subject: [PATCH 4.2 018/110] drm: Correct arguments to list_tail_add in create blob ioctl

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

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

From: Maneet Singh <mmaneetsingh@...dia.com>

commit 8731b269f01e16193390c7276e70530366b8d626 upstream.

Arguments passed to list_add_tail were reversed resulting in deletion
of old blob property everytime the new one is added.

Fixes

commit e2f5d2ea479b9b2619965d43db70939589afe43a
Author: Daniel Stone <daniels@...labora.com>
Date:   Fri May 22 13:34:51 2015 +0100

    drm/mode: Add user blob-creation ioctl

Signed-off-by: Maneet Singh <mmaneetsingh@...dia.com>
[seanpaul tweaked commit subject a little]
Signed-off-by: Sean Paul <seanpaul@...omium.org>
Reviewed-by: Daniel Stone <daniels@...labora.com>
Reviewed-by: Jani Nikula <jani.nikula@...el.com>
Signed-off-by: Dave Airlie <airlied@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/drm_crtc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4573,7 +4573,7 @@ int drm_mode_createblob_ioctl(struct drm
 	 * not associated with any file_priv. */
 	mutex_lock(&dev->mode_config.blob_lock);
 	out_resp->blob_id = blob->base.id;
-	list_add_tail(&file_priv->blobs, &blob->head_file);
+	list_add_tail(&blob->head_file, &file_priv->blobs);
 	mutex_unlock(&dev->mode_config.blob_lock);
 
 	return 0;


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