Staging: rt2860sta: prevent a panic when disabling when associated

[mirror_ubuntu-artful-kernel.git] / drivers / staging / rt2860 / common / cmm_data_2860.c

diff --git a/drivers/staging/rt2860/common/cmm_data_2860.c b/drivers/staging/rt2860/common/cmm_data_2860.c
index fb1735533b74c1d84091f6f35a36b4c31b9a7734..857ff450b6c9dbd8798980bd5364a76ba0e60ce1 100644 (file)
--- 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;