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octeontx2-af: CGX: fix bitmap leaks

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The RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap)
are allocated by cgx_lmac_init() but never freed in cgx_lmac_exit().
Unbinding and rebinding the driver therefore triggers kmemleak:

    unreferenced object (size 16):
        backtrace:
          rvu_alloc_bitmap
          cgx_probe

Free both bitmaps during teardown.

Fixes: e740003874 ("octeontx2-af: Flow control resource management")
Cc: stable@vger.kernel.org
Signed-off-by: Bo Sun <bo@mboxify.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Jijie Shao <shaojijie@huawei.com>
Link: https://patch.msgid.link/20260206130925.1087588-2-bo@mboxify.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Bo Sun 2026-02-06 21:09:24 +08:00 committed by Jakub Kicinski
parent 3a23b80dd7
commit 3def995c4e
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/marvell/octeontx2/af/cgx.c
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@ -1823,6 +1823,8 @@ static int cgx_lmac_exit(struct cgx *cgx)
cgx->mac_ops->mac_pause_frm_config(cgx, lmac->lmac_id, false);
cgx_configure_interrupt(cgx, lmac, lmac->lmac_id, true);
kfree(lmac->mac_to_index_bmap.bmap);
rvu_free_bitmap(&lmac->rx_fc_pfvf_bmap);
rvu_free_bitmap(&lmac->tx_fc_pfvf_bmap);
kfree(lmac->name);
kfree(lmac);
}