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Groups > linux.kernel > #1382951
| 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 |
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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