linux-kernel - [PATCH 1/3] of: irq: make callers of of_irq_parse

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230301185209.274134-2-jjhiblot@traphandler.com>
Date:   Wed, 1 Mar 2023 19:52:07 +0100
From:   Jean-Jacques Hiblot <jjhiblot@...phandler.com>
To:     <saravanak@...gle.com>, <clement.leger@...tlin.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        <zajec5@...il.com>, Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Marc Zyngier <maz@...nel.org>, <afaerber@...e.de>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Nishanth Menon <nm@...com>, <ssantosh@...nel.org>,
        <mathias.nyman@...el.com>, <gregkh@...uxfoundation.org>,
        <thierry.reding@...il.com>, <jonathanh@...dia.com>
CC:     <linux-renesas-soc@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
        <linux-wireless@...r.kernel.org>,
        <linux-actions@...ts.infradead.org>,
        <linux-riscv@...ts.infradead.org>, <linux-sunxi@...ts.linux.dev>,
        <devicetree@...r.kernel.org>, <linux-pci@...r.kernel.org>,
        <linux-usb@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        Jean-Jacques Hiblot <jjhiblot@...phandler.com>
Subject: [PATCH 1/3] of: irq: make callers of of_irq_parse_raw() release the device node

of_irq_parse_raw() does a get() on the device node returned in out_irq->np.
Callers of of_irq_parse_raw() must do a put() when they are done with it.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@...phandler.com>
---
 arch/powerpc/platforms/fsl_uli1575.c | 1 +
 drivers/bcma/main.c                  | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index 84afae7a25617..ba104f6474bc8 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -334,6 +334,7 @@ static void hpcd_final_uli5288(struct pci_dev *dev)
 	laddr[1] = laddr[2] = 0;
 	of_irq_parse_raw(laddr, &oirq);
 	dev->irq = irq_create_of_mapping(&oirq);
+	of_node_put(oirq.np);
 }
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, hpcd_quirk_uli1575);
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
index 0a8469e0b13ad..11219dd79d327 100644
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -193,7 +193,10 @@ static unsigned int bcma_of_get_irq(struct device *parent,
 		return 0;
 	}
 
-	return irq_create_of_mapping(&out_irq);
+	ret = irq_create_of_mapping(&out_irq);
+	of_node_put(out_irq.np);
+
+	return ret;
 }
 
 static void bcma_of_fill_device(struct device *parent,
-- 
2.25.1