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authorJohan Hovold <johan@kernel.org>2016-11-01 18:26:02 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2016-11-14 12:05:59 +0300
commite8cfb7e7c3b2be8a4c2241b5da2ae62bc1f4808f (patch)
treea81993867afca30bf8ef64c35352bf94d637fdc2
parent815a7141c4d1b11610dccb7fcbb38633759824f2 (diff)
downloadlinux-e8cfb7e7c3b2be8a4c2241b5da2ae62bc1f4808f.tar.xz
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 <johan@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
-rw-r--r--arch/powerpc/kernel/vio.c3
1 files changed, 3 insertions, 0 deletions
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)
{