linux-kernel - [PATCH v3 2/2] ARM: OMAP2+: Release device node after it is no longer needed.

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Date:   Sat,  4 Mar 2017 07:02:11 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Paul Walmsley <paul@...an.com>, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Qi Hou <qi.hou@...driver.com>, Peter Rosin <peda@...ntia.se>,
        Rob Herring <robh@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH v3 2/2] ARM: OMAP2+: Release device node after it is no longer needed.

The device node returned by of_find_node_by_name() needs to be released
after it is no longer needed to avoid a device node leak.

Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
v3: Split patch into two parts

 arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 44b5f9bbdde6..042e460f4aa4 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -3193,15 +3193,20 @@ int __init omap3xxx_hwmod_init(void)
 
 	if (h_sham && omap3xxx_hwmod_is_hs_ip_block_usable(bus, "sham")) {
 		r = omap_hwmod_register_links(h_sham);
-		if (r < 0)
+		if (r < 0) {
+			of_node_put(bus);
 			return r;
+		}
 	}
 
 	if (h_aes && omap3xxx_hwmod_is_hs_ip_block_usable(bus, "aes")) {
 		r = omap_hwmod_register_links(h_aes);
-		if (r < 0)
+		if (r < 0) {
+			of_node_put(bus);
 			return r;
+		}
 	}
+	of_node_put(bus);
 
 	/*
 	 * Register hwmod links specific to certain ES levels of a
-- 
2.7.4