From 72d020ce54298576fac0bcb88ec95c04f1af97dd Mon Sep 17 00:00:00 2001
From: schulz <schulz@fb15a70f-31f2-0310-bbcc-cdcc74a49acc>
Date: Thu, 23 Mar 2017 09:02:48 +0000
Subject: [PATCH] make sure the bouncing buffer has a length

git-svn-id: https://svn.aros.org/svn/aros/trunk/AROS@54247 fb15a70f-31f2-0310-bbcc-cdcc74a49acc
---
 rom/usb/pciusb/buffer.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/rom/usb/pciusb/buffer.c b/rom/usb/pciusb/buffer.c
index 8726bcd7f7..105fa05187 100644
--- a/rom/usb/pciusb/buffer.c
+++ b/rom/usb/pciusb/buffer.c
@@ -1,3 +1,4 @@
+#include <aros/debug.h>
 #include <devices/usbhardware.h>
 #include <exec/memory.h>
 #include <proto/exec.h>
@@ -8,13 +9,13 @@ APTR usbGetBuffer(APTR data, ULONG len, UWORD dir)
 {
     APTR ret = data;
 
-    if (((IPTR)data + len - 1) >> 32)
+    if (len && (((IPTR)data + len - 1) >> 32) != 0)
     {
     	ret = AllocVec(len, MEMF_31BIT|MEMF_PUBLIC);
 
 	if (ret && (dir == UHDIR_OUT))
 	    CopyMem(data, ret, len);
-    }
+   }
 
     return ret;
 }
@@ -23,8 +24,8 @@ void usbReleaseBuffer(APTR buffer, APTR data, ULONG len, UWORD dir)
 {
     if (buffer && (buffer != data))
     {
-    	if (len && (dir == UHDIR_IN))
-    	    CopyMem(buffer, data, len);
+        if (len && (dir == UHDIR_IN))
+            CopyMem(buffer, data, len);
 
     	FreeVec(buffer);
     }
-- 
2.11.4.GIT