powerpc/powernv/npu-dma.c: Fix opal_npu_destroy_context() call

opal_npu_destroy_context() should be called with the NPU PHB, not the
PCIe PHB.

Fixes: 1ab66d1fbada ("powerpc/powernv: Introduce address translation services for Nvlink2")
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
index 067defeea691..78fa9395b8c5 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -714,7 +714,7 @@ static void pnv_npu2_release_context(struct kref *kref)
 void pnv_npu2_destroy_context(struct npu_context *npu_context,
                         struct pci_dev *gpdev)
 {
-        struct pnv_phb *nphb, *phb;
+        struct pnv_phb *nphb;
         struct npu *npu;
         struct pci_dev *npdev = pnv_pci_get_npu_dev(gpdev, 0);
         struct device_node *nvlink_dn;
@@ -728,13 +728,12 @@ void pnv_npu2_destroy_context(struct npu_context *npu_context,
 
         nphb = pci_bus_to_host(npdev->bus)->private_data;
         npu = &nphb->npu;
-        phb = pci_bus_to_host(gpdev->bus)->private_data;
         nvlink_dn = of_parse_phandle(npdev->dev.of_node, "ibm,nvlink", 0);
         if (WARN_ON(of_property_read_u32(nvlink_dn, "ibm,npu-link-index",
                                                         &nvlink_index)))
                 return;
         npu_context->npdev[npu->index][nvlink_index] = NULL;
-        opal_npu_destroy_context(phb->opal_id, npu_context->mm->context.id,
+        opal_npu_destroy_context(nphb->opal_id, npu_context->mm->context.id,
                                 PCI_DEVID(gpdev->bus->number, gpdev->devfn));
         kref_put(&npu_context->kref, pnv_npu2_release_context);
 }