From e8cfb7e7c3b2be8a4c2241b5da2ae62bc1f4808f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 1 Nov 2016 16:26:02 +0100 Subject: powerpc/vio: Clarify vio_find_node() reference counting 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 Signed-off-by: Michael Ellerman --- 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) { -- cgit v1.2.3