linux-kernel - [PATCH 5.5 59/80] Input: ili210x - fix return value of is

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Date:   Tue, 18 Feb 2020 20:55:20 +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, Luca Weiss <luca@...tu.xyz>,
        Sven Van Asbroeck <TheSven73@...il.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: [PATCH 5.5 59/80] Input: ili210x - fix return value of is_visible function

From: Luca Weiss <luca@...tu.xyz>

commit fbd1ec000213c8b457dd4fb15b6de9ba02ec5482 upstream.

The is_visible function expects the permissions associated with an
attribute of the sysfs group or 0 if an attribute is not visible.

Change the code to return the attribute permissions when the attribute
should be visible which resolves the warning:

  Attribute calibrate: Invalid permissions 01

Fixes: cc12ba1872c6 ("Input: ili210x - optionally show calibrate sysfs attribute")
Signed-off-by: Luca Weiss <luca@...tu.xyz>
Reviewed-by: Sven Van Asbroeck <TheSven73@...il.com>
Link: https://lore.kernel.org/r/20200209145628.649409-1-luca@z3ntu.xyz
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/input/touchscreen/ili210x.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/input/touchscreen/ili210x.c
+++ b/drivers/input/touchscreen/ili210x.c
@@ -321,7 +321,7 @@ static umode_t ili210x_calibrate_visible
 	struct i2c_client *client = to_i2c_client(dev);
 	struct ili210x *priv = i2c_get_clientdata(client);
 
-	return priv->chip->has_calibrate_reg;
+	return priv->chip->has_calibrate_reg ? attr->mode : 0;
 }
 
 static const struct attribute_group ili210x_attr_group = {