[PATCH 3/4] powerpc/vio: clarify vio_find_node reference counting
From: Johan Hovold <johan@kernel.org>
Date: 2016-11-01 15:26:36
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Add comment clarifying that vio_find_node() takes a reference to the embedded struct device which needs to be dropped after use. Signed-off-by: Johan Hovold <johan@kernel.org> --- arch/powerpc/kernel/vio.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index b3813ddb2fb4..2c8fb3ec989e 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c@@ -1648,6 +1648,9 @@ static struct vio_dev *vio_find_name(const char *name) /** * vio_find_node - find an already-registered vio_dev * @vnode: device_node of the virtual device we're looking for + * + * Takes a reference to the embedded struct device which needs to be dropped + * after use. */ struct vio_dev *vio_find_node(struct device_node *vnode) {
--
2.7.3