From 7974896c881f9142587907ebd116507bf95a24df Mon Sep 17 00:00:00 2001
From: Vladimir Murzin <murzin.v@gmail.com>
Date: Tue, 9 Apr 2013 22:33:31 +0400
Subject: [PATCH] --- yaml --- r: 376722 b: refs/heads/master c:
 88696ae432ce7321540ac53d9caab3de9118b094 h: refs/heads/master v: v3

---
 [refs]                            | 2 +-
 trunk/drivers/usb/host/xhci-mem.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 4617ecff5031..f1ff1ae49539 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 331de00a64e5027365145bdf51da27b9ce15dfd5
+refs/heads/master: 88696ae432ce7321540ac53d9caab3de9118b094
diff --git a/trunk/drivers/usb/host/xhci-mem.c b/trunk/drivers/usb/host/xhci-mem.c
index bda2c51a7c74..fbf75e57628b 100644
--- a/trunk/drivers/usb/host/xhci-mem.c
+++ b/trunk/drivers/usb/host/xhci-mem.c
@@ -1827,6 +1827,9 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 	}
 	spin_unlock_irqrestore(&xhci->lock, flags);
 
+	if (!xhci->rh_bw)
+		goto no_bw;
+
 	num_ports = HCS_MAX_PORTS(xhci->hcs_params1);
 	for (i = 0; i < num_ports; i++) {
 		struct xhci_interval_bw_table *bwt = &xhci->rh_bw[i].bw_table;
@@ -1845,6 +1848,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 		}
 	}
 
+no_bw:
 	xhci->num_usb2_ports = 0;
 	xhci->num_usb3_ports = 0;
 	xhci->num_active_eps = 0;