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[Xen-changelog] blkback.c:



ChangeSet 1.1324, 2005/04/19 01:03:29+01:00, cwc22@xxxxxxxxxxxxxxxxxxxxxx

        blkback.c:
          fix to error handling for bad grant refs
          Signed-off-by: Christopher Clark



 blkback.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)


diff -Nru a/linux-2.6.11-xen-sparse/drivers/xen/blkback/blkback.c 
b/linux-2.6.11-xen-sparse/drivers/xen/blkback/blkback.c
--- a/linux-2.6.11-xen-sparse/drivers/xen/blkback/blkback.c     2005-04-19 
09:03:40 -04:00
+++ b/linux-2.6.11-xen-sparse/drivers/xen/blkback/blkback.c     2005-04-19 
09:03:40 -04:00
@@ -397,7 +397,7 @@
                         GNTTABOP_map_grant_ref, &op, 1)))
             BUG();
 
-        if ( op.u.map_grant_ref.dev_bus_addr == 0 )
+        if ( op.u.map_grant_ref.handle < 0 )
             goto out;
 
         pending_handle(pending_idx, 0) = op.u.map_grant_ref.handle;
@@ -500,7 +500,7 @@
 
     for ( i = 0; i < nseg; i++ )
     {
-        if ( unlikely(aop[i].u.map_grant_ref.dev_bus_addr == 0) )
+        if ( unlikely(aop[i].u.map_grant_ref.handle < 0) )
         {
             DPRINTK("invalid buffer -- could not remap it\n");
             fast_flush_area(pending_idx, nseg);

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