From: Leon Romanovsky Date: Mon, 24 Jun 2024 13:24:32 +0000 (+0300) Subject: RDMA/device: Return error earlier if port in not valid X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=917918f57a7b139c043e78c502876f2c286f4f0a;p=linux.git RDMA/device: Return error earlier if port in not valid There is no need to allocate port data if port provided is not valid. Fixes: c2261dd76b54 ("RDMA/device: Add ib_device_set_netdev() as an alternative to get_netdev") Link: https://lore.kernel.org/r/022047a8b16988fc88d4426da50bf60a4833311b.1719235449.git.leon@kernel.org Signed-off-by: Leon Romanovsky --- diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 55aa7aa32d4a..e0cff28bb0ef 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -2146,6 +2146,9 @@ int ib_device_set_netdev(struct ib_device *ib_dev, struct net_device *ndev, unsigned long flags; int ret; + if (!rdma_is_port_valid(ib_dev, port)) + return -EINVAL; + /* * Drivers wish to call this before ib_register_driver, so we have to * setup the port data early. @@ -2154,9 +2157,6 @@ int ib_device_set_netdev(struct ib_device *ib_dev, struct net_device *ndev, if (ret) return ret; - if (!rdma_is_port_valid(ib_dev, port)) - return -EINVAL; - pdata = &ib_dev->port_data[port]; spin_lock_irqsave(&pdata->netdev_lock, flags); old_ndev = rcu_dereference_protected(