X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fxhci.c;h=307e1a6f6101410047abafc64f86f0ea35053ba4;hb=850f788709cef8f7d53d571aec3bfb73b14c5531;hp=0b09643e09ea3ee0965e2982be91d15d4d11d640;hpb=f161c178409498872a29766f77d55e080d7b746c;p=u-boot

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 0b09643e09..307e1a6f61 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -199,7 +199,7 @@ int xhci_reset(struct xhci_hcor *hcor)
 	int ret;
 
 	/* Halting the Host first */
-	debug("// Halt the HC\n");
+	debug("// Halt the HC: %p\n", hcor);
 	state = xhci_readl(&hcor->or_usbsts) & STS_HALT;
 	if (!state) {
 		cmd = xhci_readl(&hcor->or_usbcmd);
@@ -1064,6 +1064,8 @@ int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
 	struct xhci_ctrl *ctrl;
 	int ret;
 
+	*controller = NULL;
+
 	if (xhci_hcd_init(index, &hccr, (struct xhci_hcor **)&hcor) != 0)
 		return -ENODEV;
 
@@ -1077,7 +1079,12 @@ int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
 
 	ret = xhci_lowlevel_init(ctrl);
 
-	*controller = &xhcic[index];
+	if (ret) {
+		ctrl->hccr = NULL;
+		ctrl->hcor = NULL;
+	} else {
+		*controller = &xhcic[index];
+	}
 
 	return ret;
 }
@@ -1093,9 +1100,11 @@ int usb_lowlevel_stop(int index)
 {
 	struct xhci_ctrl *ctrl = (xhcic + index);
 
-	xhci_lowlevel_stop(ctrl);
-	xhci_hcd_stop(index);
-	xhci_cleanup(ctrl);
+	if (ctrl->hcor) {
+		xhci_lowlevel_stop(ctrl);
+		xhci_hcd_stop(index);
+		xhci_cleanup(ctrl);
+	}
 
 	return 0;
 }