[media] r820t: fix size and init values

Correct the initialization values at the start of the function
and use proper variable sizes to prevent overflow.

Signed-off-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index 319adc4..96ccfeb 100644 (file)
--- a/drivers/media/tuners/r820t.c
+++ b/drivers/media/tuners/r820t.c
@@ -1468,7 +1468,8 @@ static int r820t_imr_prepare(struct r820t_priv *priv)
 static int r820t_multi_read(struct r820t_priv *priv)
 {
        int rc, i;
-       u8 data[2], min = 0, max = 255, sum = 0;
+       u16 sum = 0;
+       u8 data[2], min = 255, max = 0;
 
        usleep_range(5000, 6000);