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qeth: avoid skb_under_panic for malformatted inbound data

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To make the qeth driver more robust in case of malformatted inbound
packets due to hardware problems, an additional check for
OSN-card-type is added for OSN-type packets.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Ursula Braun 2008-10-24 11:16:55 +02:00 committed by Jeff Garzik
parent cc181282fb
commit 2d488c2f51
1 changed files with 8 additions and 5 deletions
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13
drivers/s390/net/qeth_l2_main.c
View file

@ -449,12 +449,15 @@ static void qeth_l2_process_inbound_buffer(struct qeth_card *card,
netif_rx(skb); netif_rx(skb);
break; break;
case QETH_HEADER_TYPE_OSN: case QETH_HEADER_TYPE_OSN:
skb_push(skb, sizeof(struct qeth_hdr)); if (card->info.type == QETH_CARD_TYPE_OSN) {
skb_copy_to_linear_data(skb, hdr, skb_push(skb, sizeof(struct qeth_hdr));
skb_copy_to_linear_data(skb, hdr,
sizeof(struct qeth_hdr)); sizeof(struct qeth_hdr));
len = skb->len; len = skb->len;
card->osn_info.data_cb(skb); card->osn_info.data_cb(skb);
break; break;
}
/* else unknown */
default: default:
dev_kfree_skb_any(skb); dev_kfree_skb_any(skb);
QETH_DBF_TEXT(TRACE, 3, "inbunkno"); QETH_DBF_TEXT(TRACE, 3, "inbunkno");