If vport flags do not contain VIRTCHNL2_VPORT_ENABLE_RDMA, driver does not
allocate vdev_info for this vport. This leads to kernel NULL pointer
dereference in idpf_idc_vport_dev_down(), which references vdev_info for
every vport regardless.
Check, if vdev_info was ever allocated before unplugging aux device.
Fixes: be91128c579c ("idpf: implement RDMA vport auxiliary dev create, init,
and destroy")
Reviewed-by: Madhu Chittim <[email protected]>
Signed-off-by: Larysa Zaremba <[email protected]>
---
drivers/net/ethernet/intel/idpf/idpf_idc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/idpf/idpf_idc.c
b/drivers/net/ethernet/intel/idpf/idpf_idc.c
index c1b963f6bfad..4b1037eb2623 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_idc.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_idc.c
@@ -322,7 +322,7 @@ static void idpf_idc_vport_dev_down(struct idpf_adapter
*adapter)
for (i = 0; i < adapter->num_alloc_vports; i++) {
struct idpf_vport *vport = adapter->vports[i];
- if (!vport)
+ if (!vport || !vport->vdev_info)
continue;
idpf_unplug_aux_dev(vport->vdev_info->adev);
--
2.47.0
