linux-kernel - [PATCH 24/26] Input: synaptics-rmi4: use device managed memory for the data packet buffer

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Date:	Thu, 5 Nov 2015 15:42:53 -0800
From:	Andrew Duggan <aduggan@...aptics.com>
To:	<linux-input@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:	Andrew Duggan <aduggan@...aptics.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Benjamin Tissoires <benjamin.tissoires@...il.com>,
	Christopher Heiny <cheiny@...aptics.com>,
	Stephen Chandler Paul <cpaul@...hat.com>
Subject: [PATCH 24/26] Input: synaptics-rmi4: use device managed memory for the data packet buffer

The data packet should use device managed memory since the buffer is
retained until the device goes away.

Signed-off-by: Andrew Duggan <aduggan@...aptics.com>
---
 drivers/input/rmi4/rmi_f11.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c
index ee4b155..10a0c11 100644
--- a/drivers/input/rmi4/rmi_f11.c
+++ b/drivers/input/rmi4/rmi_f11.c
@@ -683,7 +683,8 @@ static int f11_2d_construct_data(struct f11_data *f11)
 		sensor->pkt_size +=
 			DIV_ROUND_UP(query->nr_touch_shapes + 1, 8);
 
-	sensor->data_pkt = kzalloc(sensor->pkt_size, GFP_KERNEL);
+	sensor->data_pkt = devm_kzalloc(&sensor->fn->dev, sensor->pkt_size,
+					GFP_KERNEL);
 	if (!sensor->data_pkt)
 		return -ENOMEM;
 
-- 
2.1.4

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