If qeth_check_ipa_data() consumed an event, there's no point in processing it further. So drop it early, and make the surrounding code a tiny bit more readable. Signed-off-by: Julian Wiedmann <jwi@xxxxxxxxxxxxx> --- drivers/s390/net/qeth_core_main.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 954dc6c688e8..9cbdc6760aba 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -826,16 +826,17 @@ static void qeth_send_control_data_cb(struct qeth_card *card, if (IS_IPA(iob->data)) { cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); cmd = qeth_check_ipa_data(card, cmd); - } - if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) - goto out; - /*in case of OSN : check if cmd is set */ - if (card->info.type == QETH_CARD_TYPE_OSN && - cmd && - cmd->hdr.command != IPA_CMD_STARTLAN && - card->osn_info.assist_cb != NULL) { - card->osn_info.assist_cb(card->dev, cmd); - goto out; + if (!cmd) + goto out; + if (IS_OSN(card) && card->osn_info.assist_cb && + cmd->hdr.command != IPA_CMD_STARTLAN) { + card->osn_info.assist_cb(card->dev, cmd); + goto out; + } + } else { + /* non-IPA commands should only flow during initialization */ + if (card->state != CARD_STATE_DOWN) + goto out; } spin_lock_irqsave(&card->lock, flags); -- 2.16.4