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 4.4-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-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3f6026b1dcb3c8ee71198c485a72ac674c6890dd Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
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@xxxxxxxxxx>
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@xxxxxxxxxx>
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -77,10 +77,12 @@ 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@xxxxxxxxxx are
queue-4.4/usb-host-ehci-exynos-decrese-node-refcount-on-exynos_ehci_get_phy-error-paths.patch
queue-4.4/usb-host-ohci-exynos-decrese-node-refcount-on-exynos_ehci_get_phy-error-paths.patch