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| author | Yong Zhang <yong.zhang0@gmail.com> | 2009-09-14 20:20:16 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-20 20:20:30 +0200 |
| commit | cb5fd13f1178dee4302646b2890d884c380160e1 (patch) | |
| tree | 473960daef1977f2bff85c21d0f5ed9f84d35ebd | |
| parent | 89f19f04dc72363d912fd007a399cb10310eff6e (diff) | |
| download | linux-cb5fd13f1178dee4302646b2890d884c380160e1.tar.gz linux-cb5fd13f1178dee4302646b2890d884c380160e1.tar.bz2 linux-cb5fd13f1178dee4302646b2890d884c380160e1.zip | |
sched: Fix potential NULL derference of doms_cur
If CONFIG_CPUMASK_OFFSTACK is enabled but doms_cur alloc failed in
arch_init_sched_domains(), doms_cur will move back to
fallback_doms. But this time, fallback_doms has not been
initialized yet.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Cc: a.p.zijlstra@chello.nl
LKML-Reference: <1252930816-7672-1-git-send-email-yong.zhang0@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/sched.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 575fb0139038..1b900fb1c6e1 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -9165,6 +9165,7 @@ void __init sched_init_smp(void) cpumask_var_t non_isolated_cpus; alloc_cpumask_var(&non_isolated_cpus, GFP_KERNEL); + alloc_cpumask_var(&fallback_doms, GFP_KERNEL); #if defined(CONFIG_NUMA) sched_group_nodes_bycpu = kzalloc(nr_cpu_ids * sizeof(void **), @@ -9196,7 +9197,6 @@ void __init sched_init_smp(void) sched_init_granularity(); free_cpumask_var(non_isolated_cpus); - alloc_cpumask_var(&fallback_doms, GFP_KERNEL); init_sched_rt_class(); } #else |