qeth_l3_dev_hsuid_store() changes the ip hash table, which requires the ip_lock.
Signed-off-by: Ursula Braun <[email protected]> --- drivers/s390/net/qeth_l3_sys.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index 65645b1..0e00a5c 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -297,7 +297,9 @@ static ssize_t qeth_l3_dev_hsuid_store(struct device *dev, addr->u.a6.pfxlen = 0; addr->type = QETH_IP_TYPE_NORMAL; + spin_lock_bh(&card->ip_lock); qeth_l3_delete_ip(card, addr); + spin_unlock_bh(&card->ip_lock); kfree(addr); } @@ -329,7 +331,10 @@ static ssize_t qeth_l3_dev_hsuid_store(struct device *dev, addr->type = QETH_IP_TYPE_NORMAL; } else return -ENOMEM; + + spin_lock_bh(&card->ip_lock); qeth_l3_add_ip(card, addr); + spin_unlock_bh(&card->ip_lock); kfree(addr); return count; -- 2.8.4
