Explorar el Código

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>
Daniel Scheller hace 7 años
padre
commit
f9dc3af821
Se han modificado 1 ficheros con 2 adiciones y 2 borrados
  1. 2 2
      drivers/media/dvb-frontends/stv0910.c

+ 2 - 2
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) {