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qeth: fix race condition during device startup

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QDIO is running independent from netdevice state. We are not
allowed to schedule NAPI in case the netdevice is not open.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Frank Blaschka
2010-11-08 03:03:49 +00:00
committed by David S. Miller
parent b67d801f92
commit 0cffef48eb
1 changed files with 1 additions and 1 deletions
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drivers/s390/net/qeth_core_main.c
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@@ -2903,7 +2903,7 @@ void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
{ {
struct qeth_card *card = (struct qeth_card *)card_ptr; struct qeth_card *card = (struct qeth_card *)card_ptr;
if (card->dev) if (card->dev && (card->dev->flags & IFF_UP))
napi_schedule(&card->napi); napi_schedule(&card->napi);
} }
EXPORT_SYMBOL_GPL(qeth_qdio_start_poll); EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);