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authorFabrizio Castro <fabrizio.castro@bp.renesas.com>2019-03-01 11:05:45 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-03-19 14:57:32 +0100
commit238e0268c82789e4c107a37045d529a6dbce51a9 (patch)
tree01210a392924cbd12438147dbe4e0f786a56e333 /drivers/usb
parent976daf9d1199932df80e7b04546d1a1bd4ed5ece (diff)
usb: common: Consider only available nodes for dr_mode
There are cases where multiple device tree nodes point to the same phy node by means of the "phys" property, but we should only consider those nodes that are marked as available rather than just any node. Fixes: 98bfb3946695 ("usb: of: add an api to get dr_mode by the phy node") Cc: stable@vger.kernel.org # v4.4+ Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/common/common.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index 48277bbc15e4..73c8e6591746 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -145,6 +145,8 @@ enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0)
do {
controller = of_find_node_with_property(controller, "phys");
+ if (!of_device_is_available(controller))
+ continue;
index = 0;
do {
if (arg0 == -1) {