From: John de la Garza <john@jjdev.com>
Date: Thu, 6 Mar 2014 23:51:59 +0000 (-0800)
Subject: usbip:usbip_common.c: check return value of sscanf
X-Git-Tag: v3.15-rc1~139^2~614
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bf988c16a3d65c853bd3eb0ec4f15a88a76a3ccd;p=karo-tx-linux.git

usbip:usbip_common.c: check return value of sscanf

Added code to check return value of sscanf.

Signed-off-by: John de la Garza <john@jjdev.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 4a2aab16b10c..2a11233d44f8 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -55,7 +55,8 @@ static ssize_t usbip_debug_store(struct device *dev,
 				 struct device_attribute *attr, const char *buf,
 				 size_t count)
 {
-	sscanf(buf, "%lx", &usbip_debug_flag);
+	if (sscanf(buf, "%lx", &usbip_debug_flag) != 1)
+		return -EINVAL;
 	return count;
 }
 DEVICE_ATTR_RW(usbip_debug);