linux-kernel - [PATCH 4.9 118/130] [media] gs1662: drop kfree for memory allocated with devm

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Date:   Tue, 24 Jan 2017 08:55:58 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Wei Yongjun <weiyongjun1@...wei.com>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>
Subject: [PATCH 4.9 118/130] [media] gs1662: drop kfree for memory allocated with devm_kzalloc

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

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

From: Wei Yongjun <weiyongjun1@...wei.com>

commit df94121f02ecce435d6b5277071eb94b764caa89 upstream.

It's not necessary to free memory allocated with devm_kzalloc
and using kfree leads to a double free.

Fixes: 7aae6e2df127 ("[media] Add GS1662 driver, a video serializer")

Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/media/spi/gs1662.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/media/spi/gs1662.c
+++ b/drivers/media/spi/gs1662.c
@@ -453,10 +453,9 @@ static int gs_probe(struct spi_device *s
 static int gs_remove(struct spi_device *spi)
 {
 	struct v4l2_subdev *sd = spi_get_drvdata(spi);
-	struct gs *gs = to_gs(sd);
 
 	v4l2_device_unregister_subdev(sd);
-	kfree(gs);
+
 	return 0;
 }