if pdata is a NULL pointer we could cause a
kernel oops when probing the driver. Make sure
to cope with systems which won't pass pdata
to the driver.
Reported-by: Paul Zimmerman <paulz@xxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
drivers/usb/dwc3/core.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 3ff6f0a..577af1b 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -393,7 +393,7 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
dwc->dr_mode = of_usb_get_dr_mode(node);
- } else {
+ } else if (pdata) {
dwc->maximum_speed = pdata->maximum_speed;
dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
@@ -401,6 +401,9 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->needs_fifo_resize = pdata->tx_fifo_resize;
dwc->dr_mode = pdata->dr_mode;
+ } else {
+ dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+ dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);
}
/* default to superspeed if no maximum_speed passed */
--
1.8.3.4.840.g6a90778
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