Patch "usb: host: ehci-exynos: Decrese node refcount on exynos_ehci_get_phy() error paths" has been added to the 3.18-stable tree

Patch "usb: host: ehci-exynos: Decrese node refcount on exynos_ehci_get_phy() error paths" has been added to the 3.18-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    usb: host: ehci-exynos: Decrese node refcount on exynos_ehci_get_phy() error paths

to the 3.18-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     usb-host-ehci-exynos-decrese-node-refcount-on-exynos_ehci_get_phy-error-paths.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 3f6026b1dcb3c8ee71198c485a72ac674c6890dd Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzk@kernel.org>
Date: Sat, 7 Jan 2017 10:41:40 +0200
Subject: usb: host: ehci-exynos: Decrese node refcount on exynos_ehci_get_phy() error paths

From: Krzysztof Kozlowski <krzk@kernel.org>

commit 3f6026b1dcb3c8ee71198c485a72ac674c6890dd upstream.

Returning from for_each_available_child_of_node() loop requires cleaning
up node refcount.  Error paths lacked it so for example in case of
deferred probe, the refcount of phy node was left increased.

Fixes: 6d40500ac9b6 ("usb: ehci/ohci-exynos: Fix of_node_put() for child when getting PHYs")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/host/ehci-exynos.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -78,10 +78,12 @@ static int exynos_ehci_get_phy(struct de
 		if (IS_ERR(phy)) {
 			ret = PTR_ERR(phy);
 			if (ret == -EPROBE_DEFER) {
+				of_node_put(child);
 				return ret;
 			} else if (ret != -ENOSYS && ret != -ENODEV) {
 				dev_err(dev,
 					"Error retrieving usb2 phy: %d\n", ret);
+				of_node_put(child);
 				return ret;
 			}
 		}


Patches currently in stable-queue which might be from krzk@kernel.org are

queue-3.18/usb-host-ehci-exynos-decrese-node-refcount-on-exynos_ehci_get_phy-error-paths.patch
queue-3.18/usb-host-ohci-exynos-decrese-node-refcount-on-exynos_ehci_get_phy-error-paths.patch