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authorJohan Hovold <johan@kernel.org>2017-06-06 17:58:58 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-13 11:07:32 +0200
commite271b2c909a22a2c13b2d5f77f2ce0091b74540c (patch)
tree4ebe90566ce8f5fc66d40760466abc1b47884683 /drivers/usb/core/usb.c
parent0bd08fc8db593eb79bd40729279016fd5d7edc09 (diff)
USB: core: fix device node leak
Make sure to release any OF device-node reference taken when creating the USB device. Note that we currently do not hold a reference to the root hub device-tree node (i.e. the parent controller node). Fixes: 69bec7259853 ("USB: core: let USB device know device node") Cc: stable <stable@vger.kernel.org> # v4.6 Acked-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/usb.c')
-rw-r--r--drivers/usb/core/usb.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 28b053cacc90..62e1906bb2f3 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -416,6 +416,8 @@ static void usb_release_dev(struct device *dev)
usb_destroy_configuration(udev);
usb_release_bos_descriptor(udev);
+ if (udev->parent)
+ of_node_put(dev->of_node);
usb_put_hcd(hcd);
kfree(udev->product);
kfree(udev->manufacturer);