s390/qeth: fix race when initializing the IP address table

[ Upstream commit 7221b727f0079a32aca91f657141e1de564d4b97 ]

The ucast IP table is utilized by some of the L3-specific sysfs attributes
that qeth_l3_create_device_attributes() provides. So initialize the table
_before_ registering the attributes.

Fixes: ebccc7397e4a ("s390/qeth: add missing hash table initializations")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>

diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 7f71ca0..9c5e801 100644 (file)
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -2586,12 +2586,14 @@ static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
        struct qeth_card *card = dev_get_drvdata(&gdev->dev);
        int rc;
 
+       hash_init(card->ip_htable);
+
        if (gdev->dev.type == &qeth_generic_devtype) {
                rc = qeth_l3_create_device_attributes(&gdev->dev);
                if (rc)
                        return rc;
        }
-       hash_init(card->ip_htable);
+
        hash_init(card->ip_mc_htable);
        card->options.layer2 = 0;
        card->info.hwtrap = 0;