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[PATCH] of: document refcount incrementation of of_get_cpu_node()

From Masahiro Yamada <yamada.masahiro@socionext.com>
Newsgroups linux.kernel
Subject [PATCH] of: document refcount incrementation of of_get_cpu_node()
Date 2016-04-20 03:20 +0200
Message-ID <rpOYa-81w-11@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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This function increments refcount.  This is worth noting.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

 drivers/of/base.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index b299de2..365e1c02 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -394,7 +394,8 @@ bool __weak arch_find_n_match_cpu_physical_id(struct device_node *cpun,
  * before booting secondary cores. This function uses arch_match_cpu_phys_id
  * which can be overridden by architecture specific implementation.
  *
- * Returns a node pointer for the logical cpu if found, else NULL.
+ * Returns a node pointer for the logical cpu with refcount incremented, use
+ * of_node_put() on it when done. Returns NULL if not found.
  */
 struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
 {
-- 
1.9.1

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[PATCH] of: document refcount incrementation of of_get_cpu_node() Masahiro Yamada <yamada.masahiro@socionext.com> - 2016-04-20 03:20 +0200
  Re: [PATCH] of: document refcount incrementation of of_get_cpu_node() Frank Rowand <frowand.list@gmail.com> - 2016-04-22 01:10 +0200
  Re: [PATCH] of: document refcount incrementation of of_get_cpu_node() Rob Herring <robh+dt@kernel.org> - 2016-04-25 17:20 +0200

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