| From | Pranith Kumar <> | Subject | [PATCH 02/16] rcu: Check return value for cpumask allocation | Date | Wed, 23 Jul 2014 01:09:39 -0400 |
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This commit add a check for return value of zalloc_cpumask_var() used while allocating cpumask for rcu_nocb_mask.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com> --- kernel/rcu/tree_plugin.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index f07b643..bac9797 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -88,7 +88,10 @@ static void __init rcu_bootup_announce_oddness(void) #ifdef CONFIG_RCU_NOCB_CPU #ifndef CONFIG_RCU_NOCB_CPU_NONE if (!have_rcu_nocb_mask) { - zalloc_cpumask_var(&rcu_nocb_mask, GFP_KERNEL); + if (!zalloc_cpumask_var(&rcu_nocb_mask, GFP_KERNEL)) { + pr_info("rcu_nocb_mask allocation failed\n"); + return; + } have_rcu_nocb_mask = true; } #ifdef CONFIG_RCU_NOCB_CPU_ZERO -- 2.0.0.rc2
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