media: dvb-frontends/stv0910: cast the BER denominator shift exp to ULL

To avoid miscalculations related to the BER denominator, the shift
expression needs to be casted as ULL.

Picked up from the upstream dddvb GIT.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/dvb-frontends/stv0910.c b/drivers/media/dvb-frontends/stv0910.c
index 41444fa..91b21eb 100644 (file)
--- a/drivers/media/dvb-frontends/stv0910.c
+++ b/drivers/media/dvb-frontends/stv0910.c
@@ -682,8 +682,8 @@ static int get_bit_error_rate_s(struct stv *state, u32 *bernumerator,
                return -EINVAL;
 
        if ((regs[0] & 0x80) == 0) {
-               state->last_berdenominator = 1 << ((state->berscale * 2) +
-                                                 10 + 3);
+               state->last_berdenominator = 1ULL << ((state->berscale * 2) +
+                                                    10 + 3);
                state->last_bernumerator = ((u32)(regs[0] & 0x7F) << 16) |
                        ((u32)regs[1] << 8) | regs[2];
                if (state->last_bernumerator < 256 && state->berscale < 6) {