NFSv4/pnfs: Free the netid when draining a data-server address list
nfs4_pnfs_ds_addr_free() releases all three of an address entry's allocations, but the four sites that drain a decoded list before it reaches a data server open-code the loop and free only da_remotestr and the entry, leaking da_netid. Both layout drivers drain that list when nfs4_pnfs_ds_add() returned a data server already in the cache, and again on their error exits. Lift the drain into nfs4_pnfs_ds_addr_list_free() so an address list has one owner. A striping mount reaches the cached case on nearly every GETDEVICEINFO, since many deviceIDs name the same data servers. Fixes: 4be78d26810b ("NFSv4/pNFS: Store the transport type in struct nfs4_pnfs_ds_addr") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-5 Signed-off-by: Benjamin Coddington <bcodding@hammerspace.com> Signed-off-by: Anna Schumaker <anna.schumaker@hammerspace.com>