[Xen-devel] [Patch for staging 2/2] x86: adjust place of an ASSERT to avoid crash when destroy a domain.

[Yi Sun <yi.y.sun@xxxxxxxxxxxxxxx>]

In 'psr_free_cos', we should not use 'ASSERT(socket_info)' at the beginning
because the 'socket_info' is allocated only if 'psr' boot parameter is set.
So adjust its place to avoid crash.

Signed-off-by: Yi Sun <yi.y.sun@xxxxxxxxxxxxxxx>
---
 xen/arch/x86/psr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/psr.c b/xen/arch/x86/psr.c
index 7d9fa26..9ce8f17 100644
--- a/xen/arch/x86/psr.c
+++ b/xen/arch/x86/psr.c
@@ -1294,11 +1294,11 @@ static void psr_free_cos(struct domain *d)
 {
     unsigned int socket, cos;
 
-    ASSERT(socket_info);
-
     if ( !d->arch.psr_cos_ids )
         return;
 
+    ASSERT(socket_info);
+
     /* Domain is destroyed so its cos_ref should be decreased. */
     for ( socket = 0; socket < nr_sockets; socket++ )
     {
-- 
1.9.1


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