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Commit 17a60b48 authored by Avinash Patil's avatar Avinash Patil Committed by John W. Linville
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mwifiex: proper cleanup when RX multiport aggregation fails 



Free SKBs allocated during multiport aggrgation setup when RX
multiport aggregation fails in the middle. With this handling
freeing SKB in mwifiex_process_int_status() for failure case
is removed.

Also handles single RX transaction failure.

Signed-off-by: default avatarAvinash Patil <patila@marvell.com>
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 8c53e42d

drivers/net/wireless/mwifiex/sdio.c

+19 −3
Original line number Diff line number Diff line
@@ -1087,7 +1087,7 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter, 
					   (adapter->ioport | 0x1000 |

					    (card->mpa_rx.ports << 4)) +

					   card->mpa_rx.start_port, 1))

			return -1;

			goto error;



		curr_ptr = card->mpa_rx.buf;
@@ -1130,12 +1130,29 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter, 
		if (mwifiex_sdio_card_to_host(adapter, &pkt_type,

					      skb->data, skb->len,

					      adapter->ioport + port))

			return -1;

			goto error;



		mwifiex_decode_rx_packet(adapter, skb, pkt_type);

	}



	return 0;



error:

	if (MP_RX_AGGR_IN_PROGRESS(card)) {

		/* Multiport-aggregation transfer failed - cleanup */

		for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) {

			/* copy pkt to deaggr buf */

			skb_deaggr = card->mpa_rx.skb_arr[pind];

			dev_kfree_skb_any(skb_deaggr);

		}

		MP_RX_AGGR_BUF_RESET(card);

	}



	if (f_do_rx_cur)

		/* Single transfer pending. Free curr buff also */

		dev_kfree_skb_any(skb);



	return -1;

}



/*
@@ -1271,7 +1288,6 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter) 


				dev_dbg(adapter->dev,

						"info: CFG reg val =%x\n", cr);

				dev_kfree_skb_any(skb);

				return -1;

			}

		}