linux-kernel - [PATCH 1/2] powerpc/82xx: Delete an unnecessary of_node_put() call in pq2ads_pci_init

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Message-ID: <9c060a41-438b-6fb8-d549-37c72fae4898@web.de>
Date:   Tue, 27 Aug 2019 10:26:43 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     linuxppc-dev@...ts.ozlabs.org,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Enrico Weigelt <lkml@...ux.net>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Mackerras <paulus@...ba.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 1/2] powerpc/82xx: Delete an unnecessary of_node_put() call in
 pq2ads_pci_init_irq()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 27 Aug 2019 08:44:20 +0200

A null pointer would be passed to a call of the function “of_node_put”
immediately after a call of the function “of_find_compatible_node” failed
at one place.
Remove this superfluous function call.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 arch/powerpc/platforms/82xx/pq2ads-pci-pic.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
index 096cc0d59fd8..6cc054db7043 100644
--- a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
+++ b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
@@ -123,7 +123,6 @@ int __init pq2ads_pci_init_irq(void)
 	np = of_find_compatible_node(NULL, NULL, "fsl,pq2ads-pci-pic");
 	if (!np) {
 		printk(KERN_ERR "No pci pic node in device tree.\n");
-		of_node_put(np);
 		goto out;
 	}

--
2.23.0