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sched: Fix memory leak in two error corner cases 

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
View File

@ -9855,13 +9855,15 @@ int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
se = kzalloc_node(sizeof(struct sched_entity),
GFP_KERNEL, cpu_to_node(i));
if (!se)
goto err;
goto err_free_rq;
init_tg_cfs_entry(tg, cfs_rq, se, i, 0, parent->se[i]);
}
return 1;
err_free_rq:
kfree(cfs_rq);
err:
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),
GFP_KERNEL, cpu_to_node(i));
if (!rt_se)
goto err;
goto err_free_rq;
init_tg_rt_entry(tg, rt_rq, rt_se, i, 0, parent->rt_se[i]);
}
return 1;
err_free_rq:
kfree(rt_rq);
err:
return 0;
}