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| author | Johan Hovold <johan@kernel.org> | 2017-05-16 16:26:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-17 11:52:44 +0200 |
| commit | ef53b92ece675ed9778b50f4432e004683696d01 (patch) | |
| tree | 760d8ef241051956ff3387754d3bc48324ce13f1 /drivers/usb | |
| parent | a7415477a20448bbb7d13765784c0b29249a176f (diff) | |
| download | linux-stable-ef53b92ece675ed9778b50f4432e004683696d01.tar.gz linux-stable-ef53b92ece675ed9778b50f4432e004683696d01.tar.bz2 linux-stable-ef53b92ece675ed9778b50f4432e004683696d01.zip | |
USB: core: of: document reference taken by companion helper
Document that the new companion-device lookup helper takes a reference
to the companion device which needs to be dropped after use.
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/core/of.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/core/of.c b/drivers/usb/core/of.c index d787f195a9a6..d563cbcf76cf 100644 --- a/drivers/usb/core/of.c +++ b/drivers/usb/core/of.c @@ -53,6 +53,9 @@ EXPORT_SYMBOL_GPL(usb_of_get_child_node); * * Find the companion device from platform bus. * + * Takes a reference to the returned struct device which needs to be dropped + * after use. + * * Return: On success, a pointer to the companion device, %NULL on failure. */ struct device *usb_of_get_companion_dev(struct device *dev) |