On 04/13/2015 09:27 PM, Jason Gunthorpe wrote: > On Mon, Apr 13, 2015 at 02:25:16PM +0200, Michael Wang wrote: >> dev_list = kmalloc(sizeof *dev_list, GFP_KERNEL); >> if (!dev_list) >> @@ -1673,13 +1671,19 @@ static void ipoib_add_one(struct ib_device *device) >> } >> >> for (p = s; p <= e; ++p) { >> - if (rdma_port_get_link_layer(device, p) != >> IB_LINK_LAYER_INFINIBAND) >> + if (!rdma_tech_ib(device, p)) >> continue; >> dev = ipoib_add_port("ib%d", device, p); >> if (!IS_ERR(dev)) { >> priv = netdev_priv(dev); >> list_add_tail(&priv->list, dev_list); >> } >> + count++; >> + } >> + >> + if (!count) { >> + kfree(dev_list); >> + return; >> } > > This doesn't quite look right, it should be 'goto error1' > > But then I read 'goto error1' and it doesn't look like it can handle > cm_dev->port being NULL, so more fixing is needed.
Nice catch ;-) I guess the 'count++' should be inside 'if (!IS_ERR(dev))' after link the node. Regards, Michael Wang > > Ditto for cm_remove_one > > Should audit all uses of cm_dev->port[] to make sure they can all > handle NULL. > > Jason > -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html