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sched: Fix memory leak in two error corner cases

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If the second in each of these pairs of allocations fails, then the
first one will not be freed in the error route out.

Found by a static code analysis tool.

Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1260448177-28448-1-git-send-email-ext-phil.2.carmody@nokia.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Phil Carmody 2009-12-10 14:29:37 +02:00 committed by Ingo Molnar
parent 4ca3ef71f5
commit dfc12eb26a
1 changed files with 6 additions and 2 deletions
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8
kernel/sched.c
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@ -9855,13 +9855,15 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
se = kzalloc_node(sizeof(struct sched_entity), se = kzalloc_node(sizeof(struct sched_entity),
GFP_KERNEL, cpu_to_node(i)); GFP_KERNEL, cpu_to_node(i));
if (!se) if (!se)
goto err; goto err_free_rq;
init_tg_cfs_entry(tg, cfs_rq, se, i, 0, parent->se[i]); init_tg_cfs_entry(tg, cfs_rq, se, i, 0, parent->se[i]);
} }
return 1; return 1;
err_free_rq:
kfree(cfs_rq);
err: err:
return 0; return 0;
} }
@ -9943,13 +9945,15 @@ int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent)
rt_se = kzalloc_node(sizeof(struct sched_rt_entity), rt_se = kzalloc_node(sizeof(struct sched_rt_entity),
GFP_KERNEL, cpu_to_node(i)); GFP_KERNEL, cpu_to_node(i));
if (!rt_se) if (!rt_se)
goto err; goto err_free_rq;
init_tg_rt_entry(tg, rt_rq, rt_se, i, 0, parent->rt_se[i]); init_tg_rt_entry(tg, rt_rq, rt_se, i, 0, parent->rt_se[i]);
} }
return 1; return 1;
err_free_rq:
kfree(rt_rq);
err: err:
return 0; return 0;
} }