[XEN PATCH] common/sched: address a violation of MISRA C Rule 17.7

[victorm.lira]

From: Victor Lira <victorm.l...@amd.com>

Rule 17.7: "The value returned by a function having non-void return type
shall be used"

This patch fixes this by adding a check to the return value.
No functional changes.

Signed-off-by: Victor Lira <victorm.l...@amd.com>
---
Cc: George Dunlap <george.dun...@citrix.com>
Cc: Dario Faggioli <dfaggi...@suse.com>
Cc: Juergen Gross <jgr...@suse.com>
Cc: xen-devel@lists.xenproject.org
---
 xen/common/sched/core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/xen/common/sched/core.c b/xen/common/sched/core.c
index d84b65f197..e1cd824622 100644
--- a/xen/common/sched/core.c
+++ b/xen/common/sched/core.c
@@ -2789,7 +2789,10 @@ static int cpu_schedule_up(unsigned int cpu)
     BUG_ON(cpu >= NR_CPUS);
 
     if ( idle_vcpu[cpu] == NULL )
-        vcpu_create(idle_vcpu[0]->domain, cpu);
+    {
+        if ( vcpu_create(idle_vcpu[0]->domain, cpu) == NULL )
+            return -ENOMEM;
+    }
     else
         idle_vcpu[cpu]->sched_unit->res = sr;
 
-- 
2.37.6