linux-kernel - [PATCH 3.12 053/133] staging: vt6656: CARDqGetNextTBTT correct uLowNextTBTT

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Message-Id: <20140204210738.532653222@linuxfoundation.org>
Date:	Tue,  4 Feb 2014 13:07:34 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Malcolm Priestley <tvboxspy@...il.com>
Subject: [PATCH 3.12 053/133] staging: vt6656: CARDqGetNextTBTT correct uLowNextTBTT

3.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Malcolm Priestley <tvboxspy@...il.com>

commit 9acec059c0cef0bf086c738f4c0b1f4447782a48 upstream.

value uLowNextTBTT yields wrong value.

ULL is needed with qwTSF

Signed-off-by: Malcolm Priestley <tvboxspy@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/vt6656/card.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -731,7 +731,7 @@ u64 CARDqGetNextTBTT(u64 qwTSF, u16 wBea
 
     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;


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