octeontx2-vf: fix bitmap leak

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")
Signed-off-by: Bo Sun <bo@mboxify.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
index 7ebb6e656884ae82e212fb8d84e23f407062e4ae..25381f079b97d6cbd183791b4998ee302a143f1b 100644 (file)
--- 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);
 }