[Xen-devel] [PATCH] xen/sched_rc: Fix memory leak in rt_init()

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

Introduced by c/s 376bbba "sched_rt: print useful affinity info when dumping".
If the allocation of cpumask failed, prv was leaked.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Coverity-ID: 1304398
CC: Keir Fraser <keir@xxxxxxx>
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
CC: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
CC: Meng Xu <mengxu@xxxxxxxxxxxxx>
---
 xen/common/sched_rt.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/xen/common/sched_rt.c b/xen/common/sched_rt.c
index 5836d27..4372486 100644
--- a/xen/common/sched_rt.c
+++ b/xen/common/sched_rt.c
@@ -441,7 +441,7 @@ static inline struct list_head *rt_depletedq(const struct 
scheduler *ops)
     {
         _cpumask_scratch = xmalloc_array(cpumask_var_t, nr_cpu_ids);
         if ( !_cpumask_scratch )
-            return -ENOMEM;
+            goto no_mem;
     }
     nr_rt_ops++;
 
@@ -455,6 +455,10 @@ static inline struct list_head *rt_depletedq(const struct 
scheduler *ops)
     ops->sched_data = prv;
 
     return 0;
+
+ no_mem:
+    xfree(prv);
+    return -ENOMEM;
 }
 
 static void
-- 
1.7.10.4


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