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idpf: fix aux device unplugging when rdma is not supported by vport

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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 <madhu.chittim@intel.com>
Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Larysa Zaremba 2025-11-17 08:03:49 +01:00 committed by Tony Nguyen
parent 086efe0a1e
commit 4648fb2f2e
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/intel/idpf/idpf_idc.c
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@ -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);