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[Qemu-devel] [PATCH, RESEND] usb-ohci: Fix endianness issue


From: Michael Buesch
Subject: [Qemu-devel] [PATCH, RESEND] usb-ohci: Fix endianness issue
Date: Wed, 23 Dec 2009 16:52:34 +0100
User-agent: KMail/1.9.9

This fixes a possible endianness issue in the usb-ohci hw module.
hcca.frame and ohci->frame_number are 16bit, so use cpu_to_le16().

Signed-off-by: Michael Buesch <address@hidden>

---

Resend. This patch was already sent on 2009/07/08, but the problem is still 
present in trunk.

---
 hw/usb-ohci.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- trunk.orig/hw/usb-ohci.c
+++ trunk/hw/usb-ohci.c
@@ -1150,9 +1150,9 @@ static void ohci_frame_boundary(void *op
     /* Frame boundary, so do EOF stuf here */
     ohci->frt = ohci->fit;
 
-    /* XXX: endianness */
+    /* Increment frame number and take care of endianness. */
     ohci->frame_number = (ohci->frame_number + 1) & 0xffff;
-    hcca.frame = cpu_to_le32(ohci->frame_number);
+    hcca.frame = cpu_to_le16(ohci->frame_number);
 
     if (ohci->done_count == 0 && !(ohci->intr_status & OHCI_INTR_WD)) {
         if (!ohci->done)

-- 
Greetings, Michael.




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