From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 14 Oct 2013 12:28:38 +0000 (+0300)
Subject: yam: integer underflow in yam_ioctl()
X-Git-Tag: v3.12-rc7~20^2~25
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=9e5f1721907fcfbd4b575bcafa0314188f7330a5;p=linux.git

yam: integer underflow in yam_ioctl()

We cap bitrate at YAM_MAXBITRATE in yam_ioctl(), but it could also be
negative.  I don't know the impact of using a negative bitrate but let's
prevent it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/linux/yam.h b/include/linux/yam.h
index 7fe28228b274..512cdc2fb80f 100644
--- a/include/linux/yam.h
+++ b/include/linux/yam.h
@@ -77,6 +77,6 @@ struct yamdrv_ioctl_cfg {
 
 struct yamdrv_ioctl_mcs {
 	int cmd;
-	int bitrate;
+	unsigned int bitrate;
 	unsigned char bits[YAM_FPGA_SIZE];
 };