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qcacmn: Handle NULL objects properly

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handle qdf_nbuf_unshare failure cases and NULL peer
in pn_error handler properly.

Change-Id: I9d271bed512a7e84a16d2b6c5b34f13235fc54e9
CRs-Fixed: 2221457
This commit is contained in:
Tallapragada Kalyan 2018-04-04 11:34:55 +05:30 • committed by nshrivas
commit bc62989ce4
2 changed files with 21 additions and 8 deletions
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13
dp/wifi3.0/dp_rx.c
View file

@ -191,6 +191,7 @@ QDF_STATUS dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
rxdma_ring_entry = hal_srng_src_get_next(dp_soc->hal_soc,
rxdma_srng);
qdf_assert_always(rxdma_ring_entry);
next = (*desc_list)->next;
@ -385,6 +386,18 @@ dp_rx_intrabss_fwd(struct dp_soc *soc,
return false;
nbuf = qdf_nbuf_unshare(nbuf);
if (!nbuf) {
DP_STATS_INC_PKT(sa_peer,
rx.intra_bss.fail,
1,
len);
/* return true even though the pkt is
* not forwarded. Basically skb_unshare
* failed and we want to continue with
* next nbuf.
*/
return true;
}
}
if (!dp_tx_send(sa_peer->vdev, nbuf)) {

16
dp/wifi3.0/dp_rx_err.c
View file

@ -348,18 +348,18 @@ dp_rx_pn_error_handle(struct dp_soc *soc, void *ring_desc,
/*
* TODO: Check for peer specific policies & set peer_pn_policy
*/
QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
"discard rx due to PN error for peer %pK "
"(%02x:%02x:%02x:%02x:%02x:%02x)\n",
peer,
peer->mac_addr.raw[0], peer->mac_addr.raw[1],
peer->mac_addr.raw[2], peer->mac_addr.raw[3],
peer->mac_addr.raw[4], peer->mac_addr.raw[5]);
}
QDF_TRACE(QDF_MODULE_ID_DP, QDF_TRACE_LEVEL_ERROR,
"Packet received with PN error");
QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
"discard rx due to PN error for peer %pK "
"(%02x:%02x:%02x:%02x:%02x:%02x)\n",
peer,
peer->mac_addr.raw[0], peer->mac_addr.raw[1],
peer->mac_addr.raw[2], peer->mac_addr.raw[3],
peer->mac_addr.raw[4], peer->mac_addr.raw[5]);
/* No peer PN policy -- definitely drop */
if (!peer_pn_policy)
rx_bufs_used = dp_rx_msdus_drop(soc, ring_desc,