[PATCH 4.4 083/113] usb: renesas_usbhs: gadget: fix return value check in usbhs_mod_gadget_probe()

From: Greg Kroah-Hartman
Date: Mon Sep 05 2016 - 13:07:42 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Wei Yongjun <weiyj.lk@xxxxxxxxx>

commit 3295235fd70ed6d594aadee8c892a14f6a4b2d2e upstream.

In case of error, the function usb_get_phy() returns ERR_PTR() and never
returns NULL. The NULL test in the return value check should be replaced
with IS_ERR().

Fixes: b5a2875605ca ("usb: renesas_usbhs: Allow an OTG PHY driver to
provide VBUS")
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Signed-off-by: Wei Yongjun <weiyj.lk@xxxxxxxxx>
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/usb/renesas_usbhs/mod_gadget.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -1075,7 +1075,7 @@ int usbhs_mod_gadget_probe(struct usbhs_

gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
dev_info(dev, "%stransceiver found\n",
- gpriv->transceiver ? "" : "no ");
+ !IS_ERR(gpriv->transceiver) ? "" : "no ");

/*
* CAUTION