From b5a56fc94bcc0910870391da8778ba1c6d41bd3d Mon Sep 17 00:00:00 2001 From: Darren Salt Date: Wed, 14 Oct 2009 02:19:22 +0100 Subject: [PATCH] Staging: rt2860sta: prevent a panic when disabling when associated commit 0af49167b1e5ba154e90d2c454bf4624ee47df80 upstream. This fixes a panic which is triggered when the hardware "disappears" from beneath the driver, i.e. when wireless is toggled off via Fn-F2 on various EeePC models. Ref. bug report http://bugzilla.kernel.org/show_bug.cgi?id=13390 panic http://bugzilla.kernel.org/attachment.cgi?id=21928 Signed-off-by: Darren Salt Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rt2860/common/cmm_data_2860.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/rt2860/common/cmm_data_2860.c b/drivers/staging/rt2860/common/cmm_data_2860.c index fb1735533b74..857ff450b6c9 100644 --- a/drivers/staging/rt2860/common/cmm_data_2860.c +++ b/drivers/staging/rt2860/common/cmm_data_2860.c @@ -363,6 +363,8 @@ int RtmpPCIMgmtKickOut( ULONG SwIdx = pAd->MgmtRing.TxCpuIdx; pTxD = (PTXD_STRUC) pAd->MgmtRing.Cell[SwIdx].AllocVa; + if (!pTxD) + return 0; pAd->MgmtRing.Cell[SwIdx].pNdisPacket = pPacket; pAd->MgmtRing.Cell[SwIdx].pNextNdisPacket = NULL; -- 2.39.5