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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: linux-input@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Wolfram Sang <wsa@the-dreams.de>,
	Jean Delvare <jdelvare@suse.com>,
	m.frohiky@gmail.com,
	Christian Gmeiner <christian.gmeiner@gmail.com>
Subject: [PATCH] Input: ar1021-i2c - fix too long name in driver's device table
Date: Mon, 12 Dec 2016 15:57:02 -0800	[thread overview]
Message-ID: <20161212235702.GA10843@dtor-ws> (raw)

The name field in structure i2c_device_id is 20 characters, and we
expect it to be NULL-terminated, however we are trying to stuff it with
21 bytes and thus NULL-terminator is lost. This causes issues when one
creates device with name "MICROCHIP_AR1021_I2C" as i2c core cuts off the
last "C", and automatic module loading by alias does not work as result.

The -I2C suffix in the device name is superfluous, we know what bus we
are dealing with, so let's drop it.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=116211
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/ar1021_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/ar1021_i2c.c b/drivers/input/touchscreen/ar1021_i2c.c
index 71b5a63..89f9587 100644
--- a/drivers/input/touchscreen/ar1021_i2c.c
+++ b/drivers/input/touchscreen/ar1021_i2c.c
@@ -152,7 +152,7 @@ static int __maybe_unused ar1021_i2c_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(ar1021_i2c_pm, ar1021_i2c_suspend, ar1021_i2c_resume);
 
 static const struct i2c_device_id ar1021_i2c_id[] = {
-	{ "MICROCHIP_AR1021_I2C", 0 },
+	{ "MICROCHIP_AR1021", 0 },
 	{ },
 };
 MODULE_DEVICE_TABLE(i2c, ar1021_i2c_id);
-- 
2.8.0.rc3.226.g39d4020


-- 
Dmitry

             reply	other threads:[~2016-12-12 23:57 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-12 23:57 Dmitry Torokhov [this message]
2016-12-13  5:58 ` [PATCH] Input: ar1021-i2c - fix too long name in driver's device table Wolfram Sang
2016-12-13  7:41 ` Christian Gmeiner
2016-12-13 14:06 ` Jean Delvare

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