[Xen-changelog] [xen-unstable] [LINUX] Update the hvm_op wrapper now that the return value of get_param is in

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Node ID 00a70786e550d0ea9bb02e1cc27b2ab841d7a75b
# Parent  4b145f81fce466a0b789fe14f0912a8babcebfbd
[LINUX] Update the hvm_op wrapper now that the return value of get_param is in
the parameter structure rather than the hypercall return value.
Signed-off-by: Steven Smith <ssmith@xxxxxxxxxxxxx>
---
 linux-2.6-xen-sparse/include/xen/hvm.h |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletion(-)

diff -r 4b145f81fce4 -r 00a70786e550 linux-2.6-xen-sparse/include/xen/hvm.h
--- a/linux-2.6-xen-sparse/include/xen/hvm.h    Wed Aug 16 16:14:03 2006 +0100
+++ b/linux-2.6-xen-sparse/include/xen/hvm.h    Wed Aug 16 16:15:46 2006 +0100
@@ -8,10 +8,17 @@ static inline unsigned long hvm_get_para
 static inline unsigned long hvm_get_parameter(int idx)
 {
        struct xen_hvm_param xhv;
+       int r;
 
        xhv.domid = DOMID_SELF;
        xhv.index = idx;
-       return HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
+       r = HYPERVISOR_hvm_op(HVMOP_get_param, &xhv);
+       if (r < 0) {
+               printk(KERN_ERR "cannot get hvm parameter %d: %d.\n",
+                      idx, r);
+               return 0;
+       }
+       return xhv.value;
 }
 
 #endif /* XEN_HVM_H__ */

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