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Commit 9acec059 authored by Malcolm Priestley's avatar Malcolm Priestley Committed by Greg Kroah-Hartman
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staging: vt6656: CARDqGetNextTBTT correct uLowNextTBTT 



value uLowNextTBTT yields wrong value.

ULL is needed with qwTSF

Signed-off-by: default avatarMalcolm Priestley <tvboxspy@gmail.com>
Cc: stable@vger.kernel.org # v3.9+
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 98e54917

drivers/staging/vt6656/card.c

+1 −1
Original line number Diff line number Diff line
@@ -727,7 +727,7 @@ u64 CARDqGetNextTBTT(u64 qwTSF, u16 wBeaconInterval) 


    uBeaconInterval = wBeaconInterval * 1024;

    // Next TBTT = ((local_current_TSF / beacon_interval) + 1 ) * beacon_interval

	uLowNextTBTT = ((qwTSF & 0xffffffffU) >> 10) << 10;

	uLowNextTBTT = ((qwTSF & 0xffffffffULL) >> 10) << 10;

	uLowRemain = (uLowNextTBTT) % uBeaconInterval;

	uHighRemain = ((0x80000000 % uBeaconInterval) * 2 * (u32)(qwTSF >> 32))

		% uBeaconInterval;