The bitmap allocated with bitmap_zalloc() in otx2vf_probe() was not released in otx2vf_remove(). Unbinding and rebinding the driver therefore triggers a kmemleak warning:
unreferenced object (size 8): backtrace: bitmap_zalloc otx2vf_probe
Call bitmap_free() in the remove path to fix the leak.
Fixes: efabce290151 ("octeontx2-pf: AF_XDP zero copy receive support") Cc: stable@vger.kernel.org
Signed-off-by: Bo Sun bo@mboxify.com --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c index 7ebb6e656884..25381f079b97 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c @@ -854,6 +854,7 @@ static void otx2vf_remove(struct pci_dev *pdev) qmem_free(vf->dev, vf->dync_lmt); otx2vf_vfaf_mbox_destroy(vf); pci_free_irq_vectors(vf->pdev); + bitmap_free(vf->af_xdp_zc_qidx); pci_set_drvdata(pdev, NULL); free_netdev(netdev); }