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

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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>
This commit is contained in:
Daniel Scheller 2018-06-23 11:35:58 -04:00 committed by Mauro Carvalho Chehab
parent d21c249b26
commit f9dc3af821
1 changed files with 2 additions and 2 deletions
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4
drivers/media/dvb-frontends/stv0910.c
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@ -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) {