[PATCH 1/3] Staging: asus_oled: fix oops in 2.6.32.2

Greg Kroah-Hartman gregkh at suse.de
Wed Jan 20 23:50:35 UTC 2010


From: Eugeni Dodonov <eugeni at mandriva.com>

After updating to 2.6.32 kernel, I started experiencing Oopses caused by
the asus_oled module. After quick investigation, I wrapped this simple
patch which fixes an Oops in by asus_oled module on 2.6.32.2 kernel,
caused by incorrect usage of strict_strtoul function call within
set_enabled and set_disabled functions. This can be triggered by simple
running the userspace client for asus_old (e.g., 'asusoled -e' or
'asusoled -d').

Signed-off-by: Eugeni Dodonov <eugeni at mandriva.com>
Cc: stable <stable at kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>
---
 drivers/staging/asus_oled/asus_oled.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/asus_oled/asus_oled.c b/drivers/staging/asus_oled/asus_oled.c
index f4c2657..43c57b7 100644
--- a/drivers/staging/asus_oled/asus_oled.c
+++ b/drivers/staging/asus_oled/asus_oled.c
@@ -194,9 +194,11 @@ static ssize_t set_enabled(struct device *dev, struct device_attribute *attr,
 {
 	struct usb_interface *intf = to_usb_interface(dev);
 	struct asus_oled_dev *odev = usb_get_intfdata(intf);
-	int temp = strict_strtoul(buf, 10, NULL);
+	unsigned long value;
+	if (strict_strtoul(buf, 10, &value))
+		return -EINVAL;
 
-	enable_oled(odev, temp);
+	enable_oled(odev, value);
 
 	return count;
 }
@@ -207,10 +209,12 @@ static ssize_t class_set_enabled(struct device *device,
 {
 	struct asus_oled_dev *odev =
 		(struct asus_oled_dev *) dev_get_drvdata(device);
+	unsigned long value;
 
-	int temp = strict_strtoul(buf, 10, NULL);
+	if (strict_strtoul(buf, 10, &value))
+		return -EINVAL;
 
-	enable_oled(odev, temp);
+	enable_oled(odev, value);
 
 	return count;
 }
-- 
1.6.5.7




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