usb: renesas_usbhs: gadget: fix return value check in usbhs_mod_gadget_probe()

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@renesas.com>
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index 67f7dbda9e79576521f6d2321fd187afe63d88da..efc4fae123a4c44bbfd53afa334740f148ee89d6 100644 (file)
--- 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_priv *priv)
 
        gpriv->transceiver = usb_get_phy(USB_PHY_TYPE_UNDEFINED);
        dev_info(dev, "%stransceiver found\n",
-                gpriv->transceiver ? "" : "no ");
+                !IS_ERR(gpriv->transceiver) ? "" : "no ");
 
        /*
         * CAUTION