Patch "octeontx2-af: debugsfs: fix pci device refcount leak" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    octeontx2-af: debugsfs: fix pci device refcount leak

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     octeontx2-af-debugsfs-fix-pci-device-refcount-leak.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 82db153d019f27b880c7b6ee767f02ac18328072
Author: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Date:   Thu Nov 17 20:46:58 2022 +0800

    octeontx2-af: debugsfs: fix pci device refcount leak
    
    [ Upstream commit d66608803aa2ffb9e475623343f69996305771ae ]
    
    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@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20221117124658.162409-1-yangyingliang@xxxxxxxxxx
    Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
index f001579569a2..66d34699f160 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -441,6 +441,8 @@ static int rvu_dbg_rvu_pf_cgx_map_display(struct seq_file *filp, void *unused)
 		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;
 }
@@ -2127,6 +2129,7 @@ static int cgx_print_dmac_flt(struct seq_file *s, int lmac_id)
 		}
 	}
 
+	pci_dev_put(pdev);
 	return 0;
 }