mana_ib_create_wq(): Return the value of ib_umem_get() in case of a failure

[dotan-barak]

Instead of the code:
umem = ib_umem_get(pd->device, ucmd.wq_buf_addr, ucmd.wqe * 32,
IB_ACCESS_LOCAL_WRITE); // 32 WQE size!
if (IS_ERR(umem)) {
kfree(wq);
return ERR_PTR(-ENOMEM);
}

Use the following:
umem = ib_umem_get(pd->device, ucmd.wq_buf_addr, ucmd.wqe * 32,
IB_ACCESS_LOCAL_WRITE); // 32 WQE size!
if (IS_ERR(umem)) {
kfree(wq);
return umem;
}

[dotan-barak]

Working on this issue