From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Thu, 17 Mar 2011 05:09:09 +0000 (-0700)
Subject: Input: tsc2005 - clear driver data after unbinding
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=2721a89ac41f2e7705484c1582c293c4eee5344d;p=openwrt%2Fstaging%2Fblogic.git

Input: tsc2005 - clear driver data after unbinding

We should not leave garbage pointers in driver structure after we unbind
it from the device or if bind fails.

Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index 596fd1f01b22..732c81e9a3e6 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -634,8 +634,10 @@ static int __devinit tsc2005_probe(struct spi_device *spi)
 	spi_setup(spi);
 
 	r = tsc2005_setup(ts, pdata);
-	if (r)
+	if (r) {
 		kfree(ts);
+		spi_set_drvdata(spi, NULL);
+	}
 	return r;
 }
 
@@ -659,6 +661,7 @@ static int __devexit tsc2005_remove(struct spi_device *spi)
 	input_unregister_device(ts->idev);
 	kfree(ts);
 
+	spi_set_drvdata(spi, NULL);
 	return 0;
 }