From: Kevin O'Connor <kevin@koconnor.net>
Date: Sat, 31 Oct 2009 17:55:59 +0000 (-0400)
Subject: Call yield() while waiting for USB control transfers to complete.
X-Git-Tag: rel-0.5.0~46
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=229e3be8d8a7a56c2c15cb71d4765b787848675d;p=seabios.git

Call yield() while waiting for USB control transfers to complete.
---

diff --git a/src/usb-ohci.c b/src/usb-ohci.c
index 15841dc..b62090f 100644
--- a/src/usb-ohci.c
+++ b/src/usb-ohci.c
@@ -185,7 +185,7 @@ wait_ed(struct ohci_ed *ed)
             dprintf(1, "Timeout on wait_ed %p\n", ed);
             return -1;
         }
-        cpu_relax();
+        yield();
     }
 }
 
diff --git a/src/usb-uhci.c b/src/usb-uhci.c
index cc01234..64531a9 100644
--- a/src/usb-uhci.c
+++ b/src/usb-uhci.c
@@ -166,7 +166,7 @@ wait_qh(struct usb_s *cntl, struct uhci_qh *qh)
                     , inw(cntl->uhci.iobase + USBSTS));
             return -1;
         }
-        cpu_relax();
+        yield();
     }
 }