From: Liang He <windhl@126.com>
To: dinguyen@kernel.org, linux@armlinux.org.uk
Cc: windhl@126.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] arm: mach-socfpga: Fix refcount leak bug in socfpga
Date: Fri, 17 Jun 2022 20:06:18 +0800 [thread overview]
Message-ID: <20220617120618.4047441-1-windhl@126.com> (raw)
In socfpga_sysmgr_init(), of_find_compatible_node() will return a
node pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.
Signed-off-by: Liang He <windhl@126.com>
---
arch/arm/mach-socfpga/socfpga.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c
index 9e4cb2ffd580..c561b3b7a9ee 100644
--- a/arch/arm/mach-socfpga/socfpga.c
+++ b/arch/arm/mach-socfpga/socfpga.c
@@ -36,12 +36,15 @@ static void __init socfpga_sysmgr_init(void)
sync_cache_w(&socfpga_cpu1start_addr);
sys_manager_base_addr = of_iomap(np, 0);
+ of_node_put(np);
np = of_find_compatible_node(NULL, NULL, "altr,rst-mgr");
rst_manager_base_addr = of_iomap(np, 0);
+ of_node_put(np);
np = of_find_compatible_node(NULL, NULL, "altr,sdr-ctl");
sdr_ctl_base_addr = of_iomap(np, 0);
+ of_node_put(np);
}
static void __init socfpga_init_irq(void)
--
2.25.1
next reply other threads:[~2022-06-17 12:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-17 12:06 Liang He [this message]
2022-06-22 9:00 ` Krzysztof Kozlowski
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