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qcacmn: Validate nbuf in dp trace function

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This reverts commit Idb59f83edc09f9be8bf0bd231b8eb6ff28f37fd4.

nbuf was set to NULL and then deferenced.

To address the issue validate nbuf before processing in dp trace function.

Change-Id: I464c0dea36c0288c4bb01d6fba5255169d7ec255
CRs-Fixed: 2220892
This commit is contained in:
jitiphil
2018-04-25 07:23:23 +05:30
committed by nshrivas
parent f5e2570abe
commit e5515b01bf
1 changed files with 4 additions and 6 deletions
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10
qdf/linux/src/qdf_trace.c
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@@ -1196,12 +1196,10 @@ static bool qdf_dp_enable_check(qdf_nbuf_t nbuf, enum QDF_DP_TRACE_ID code,
if (qdf_dp_trace_enable_track(code) == false)
return false;
if (!nbuf)
return false;
if ((QDF_NBUF_CB_TX_PACKET_TRACK(nbuf) != QDF_NBUF_TX_PKT_DATA_TRACK) ||
((dir == QDF_TX) && (QDF_NBUF_CB_TX_DP_TRACE(nbuf) == 0)) ||
((dir == QDF_RX) && (QDF_NBUF_CB_RX_DP_TRACE(nbuf) == 0)))
if ((nbuf) && ((QDF_NBUF_CB_TX_PACKET_TRACK(nbuf) !=
QDF_NBUF_TX_PKT_DATA_TRACK) ||
((dir == QDF_TX) && (QDF_NBUF_CB_TX_DP_TRACE(nbuf) == 0)) ||
((dir == QDF_RX) && (QDF_NBUF_CB_RX_DP_TRACE(nbuf) == 0))))
return false;
return true;