linux-kernel - [PATCH 2/2] powerpc/82xx: Use common error handling code in pq2ads_pci_init

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Message-ID: <1a4bafee-562f-5eb4-d2bd-34704f8c5ab3@web.de>
Date:   Tue, 27 Aug 2019 10:28:18 +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 2/2] powerpc/82xx: Use common error handling code in
 pq2ads_pci_init_irq()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 27 Aug 2019 09:19:32 +0200

Adjust jump targets so that a bit of exception handling can be better
reused at the end of this function.

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 | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
index 6cc054db7043..f82f75a6085c 100644
--- a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
+++ b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
@@ -129,13 +129,11 @@ int __init pq2ads_pci_init_irq(void)
 	irq = irq_of_parse_and_map(np, 0);
 	if (!irq) {
 		printk(KERN_ERR "No interrupt in pci pic node.\n");
-		of_node_put(np);
-		goto out;
+		goto out_put_node;
 	}

 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv) {
-		of_node_put(np);
 		ret = -ENOMEM;
 		goto out_unmap_irq;
 	}
@@ -160,17 +158,17 @@ int __init pq2ads_pci_init_irq(void)
 	priv->host = host;
 	irq_set_handler_data(irq, priv);
 	irq_set_chained_handler(irq, pq2ads_pci_irq_demux);
-
-	of_node_put(np);
-	return 0;
+	ret = 0;
+	goto out_put_node;

 out_unmap_regs:
 	iounmap(priv->regs);
 out_free_kmalloc:
 	kfree(priv);
-	of_node_put(np);
 out_unmap_irq:
 	irq_dispose_mapping(irq);
+out_put_node:
+	of_node_put(np);
 out:
 	return ret;
 }
--
2.23.0