usb: r8a66597-hcd: fix wrong data access in SuperH on-chip USB

When I used SuperH on-chip USB, there was the problem that accessed
r8a66597_root_hub which was not allocated.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index c18d8790c41..2376f24f3c8 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -1763,11 +1763,12 @@ static void r8a66597_timer(unsigned long _r8a66597)
 {
         struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
         unsigned long flags;
+        int port;
 
         spin_lock_irqsave(&r8a66597->lock, flags);
 
-        r8a66597_root_hub_control(r8a66597, 0);
-        r8a66597_root_hub_control(r8a66597, 1);
+        for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++)
+                r8a66597_root_hub_control(r8a66597, port);
 
         spin_unlock_irqrestore(&r8a66597->lock, flags);
 }