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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Adam Ford <aford173@gmail.com>,
	Sven Van Asbroeck <TheSven73@gmail.com>,
	Sasha Levin <sashal@kernel.org>,
	linux-input@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 060/134] Input: ili210x - handle errors from input_mt_init_slots()
Date: Wed, 11 Dec 2019 10:10:36 -0500	[thread overview]
Message-ID: <20191211151150.19073-60-sashal@kernel.org> (raw)
In-Reply-To: <20191211151150.19073-1-sashal@kernel.org>

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

[ Upstream commit 43f06a4c639de8ee89fc348a9a3ecd70320a04dd ]

input_mt_init_slots() may fail and we need to handle such failures.

Tested-by: Adam Ford <aford173@gmail.com> #imx6q-logicpd
Tested-by: Sven Van Asbroeck <TheSven73@gmail.com> # ILI2118A variant
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/touchscreen/ili210x.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/ili210x.c b/drivers/input/touchscreen/ili210x.c
index e9006407c9bc0..f4ebdab062806 100644
--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -334,7 +334,12 @@ static int ili210x_i2c_probe(struct i2c_client *client,
 	input_set_abs_params(input, ABS_MT_POSITION_X, 0, 0xffff, 0, 0);
 	input_set_abs_params(input, ABS_MT_POSITION_Y, 0, 0xffff, 0, 0);
 	touchscreen_parse_properties(input, true, &priv->prop);
-	input_mt_init_slots(input, priv->max_touches, INPUT_MT_DIRECT);
+
+	error = input_mt_init_slots(input, priv->max_touches, INPUT_MT_DIRECT);
+	if (error) {
+		dev_err(dev, "Unable to set up slots, err: %d\n", error);
+		return error;
+	}
 
 	error = devm_add_action(dev, ili210x_cancel_work, priv);
 	if (error)
-- 
2.20.1


  parent reply	other threads:[~2019-12-11 16:05 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20191211151150.19073-1-sashal@kernel.org>
2019-12-11 15:09 ` [PATCH AUTOSEL 5.4 008/134] Input: atmel_mxt_ts - disable IRQ across suspend Sasha Levin
2019-12-11 15:10 ` [PATCH AUTOSEL 5.4 025/134] Input: st1232 - do not reset the chip too early Sasha Levin
2019-12-11 15:10 ` Sasha Levin [this message]
2019-12-11 15:10 ` [PATCH AUTOSEL 5.4 075/134] HID: quirks: Add quirk for HP MSU1465 PIXART OEM mouse Sasha Levin
2019-12-11 15:10 ` [PATCH AUTOSEL 5.4 078/134] HID: logitech-hidpp: Silence intermittent get_battery_capacity errors Sasha Levin
2019-12-11 15:10 ` [PATCH AUTOSEL 5.4 079/134] HID: i2c-hid: fix no irq after reset on raydium 3118 Sasha Levin
2019-12-11 15:10 ` [PATCH AUTOSEL 5.4 082/134] HID: Improve Windows Precision Touchpad detection Sasha Levin
2019-12-11 15:10 ` [PATCH AUTOSEL 5.4 083/134] HID: rmi: Check that the RMI_STARTED bit is set before unregistering the RMI transport device Sasha Levin

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