Updated from Linux LTS 3.10.21 to 3.10.22

drivers/media/dvb-frontends/itd1000.c

@@ -31,6 +31,9 @@
 #include "itd1000.h"
 #include "itd1000_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 static int debug;
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
@@ -52,10 +55,18 @@ MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
 /* don't write more than one byte with flexcop behind */
 static int itd1000_write_regs(struct itd1000_state *state, u8 reg, u8 v[], u8 len)
 {
-	u8 buf[1+len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg = {
 		.addr = state->cfg->i2c_address, .flags = 0, .buf = buf, .len = len+1
 	};
+
+	if (1 + len > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "itd1000: i2c wr reg=%04x: len=%d is too big!\n",
+		       reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = reg;
 	memcpy(&buf[1], v, len);