From: Yang Yingliang <yangyingliang@huawei.com>

Date: Thu, 17 Nov 2022 20:46:58 +0800

Subject: octeontx2-af: debugsfs: fix pci device refcount leak

Patch-mainline: v6.1-rc7

Git-commit: d66608803aa2ffb9e475623343f69996305771ae

References: git-fixes

As comment of pci_get_domain_bus_and_slot() says, it returns

a pci device with refcount increment, when finish using it,

the caller must decrement the reference count by calling

pci_dev_put().

So before returning from rvu_dbg_rvu_pf_cgx_map_display() or

cgx_print_dmac_flt(), pci_dev_put() is called to avoid refcount

leak.

Fixes: dbc52debf95f ("octeontx2-af: Debugfs support for DMAC filters")

Fixes: e2fb37303865 ("octeontx2-af: Display CGX, NIX and PF map in debugfs.")

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>

Link: https://lore.kernel.org/r/20221117124658.162409-1-yangyingliang@huawei.com

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>

---

 drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c |    3 +++

 1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c

+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c

@@ -534,6 +534,8 @@ static int rvu_dbg_rvu_pf_cgx_map_displa

 		sprintf(lmac, "LMAC%d", lmac_id);

 		seq_printf(filp, "%s\t0x%x\t\tNIX%d\t\t%s\t%s\n",

 			   dev_name(&pdev->dev), pcifunc, blkid, cgx, lmac);

+

+		pci_dev_put(pdev);

 	}

 	return 0;

 }

@@ -2220,6 +2222,7 @@ static int cgx_print_dmac_flt(struct seq

 		}

 	}

+	pci_dev_put(pdev);

 	return 0;

 }