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;
 }