From: Mauro Carvalho Chehab <mchehab@infradead.org>
Date: Mon, 5 Nov 2007 11:41:50 +0000 (-0300)
Subject: V4L/DVB (6559): Fix a buffer overflow at xc2028_get_reg
X-Git-Tag: firefly_0821_release~23728^2~398
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b873e1a3ccf9e04d2de85db0d510ec4b793fe569;p=firefly-linux-kernel-4.4.55.git

V4L/DVB (6559): Fix a buffer overflow at xc2028_get_reg

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---

diff --git a/drivers/media/video/tuner-xc2028.c b/drivers/media/video/tuner-xc2028.c
index 80d14020c78d..b4c88ed12a8a 100644
--- a/drivers/media/video/tuner-xc2028.c
+++ b/drivers/media/video/tuner-xc2028.c
@@ -94,13 +94,13 @@ struct xc2028_data {
 static int xc2028_get_reg(struct xc2028_data *priv, u16 reg)
 {
 	int rc;
-	unsigned char buf[1];
+	unsigned char buf[2];
 
 	tuner_info("%s called\n", __FUNCTION__);
 
 	buf[0] = reg;
 
-	i2c_send(rc, priv, buf, sizeof(buf));
+	i2c_send(rc, priv, buf, 1);
 	if (rc < 0)
 		return rc;