linux-kernel - [PATCH] powerpc/xics: add missing of_node

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Date:   Wed, 25 Apr 2018 19:27:07 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <benh@...nel.crashing.org>, <paulus@...ba.org>,
        <mpe@...erman.id.au>, <geoff@...radead.org>, <joe@...ches.com>
CC:     <linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH] powerpc/xics: add missing of_node_put() in error path

The device node obtained with of_find_compatible_node() should be
released by calling of_node_put().  But it was not released when
of_get_property() failed.

Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 arch/powerpc/sysdev/xics/xics-common.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c
index 77e864d..e54a9e6 100644
--- a/arch/powerpc/sysdev/xics/xics-common.c
+++ b/arch/powerpc/sysdev/xics/xics-common.c
@@ -448,7 +448,10 @@ static void __init xics_get_server_size(void)
 		return;
 	isize = of_get_property(np, "ibm,interrupt-server#-size", NULL);
 	if (!isize)
+	{
+		of_node_put(np);
 		return;
+	}
 	xics_interrupt_server_size = be32_to_cpu(*isize);
 	of_node_put(np);
 }
-- 
2.7.0