From 0079786f9ae5d3de234cbe61f3e6b1fc108ce16c Mon Sep 17 00:00:00 2001 From: Yunfeng Ye Date: Thu, 7 Nov 2019 17:33:43 +0800 Subject: [PATCH] arm64: armv8_deprecated: Checking return value for memory allocation [ Upstream commit 3e7c93bd04edfb0cae7dad1215544c9350254b8f ] There are no return value checking when using kzalloc() and kcalloc() for memory allocation. so add it. Signed-off-by: Yunfeng Ye Signed-off-by: Will Deacon Signed-off-by: Sasha Levin Signed-off-by: Yang Yingliang --- arch/arm64/kernel/armv8_deprecated.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c index e52e7280884a..d2be2e4b49b9 100644 --- a/arch/arm64/kernel/armv8_deprecated.c +++ b/arch/arm64/kernel/armv8_deprecated.c @@ -177,6 +177,9 @@ static void __init register_insn_emulation(struct insn_emulation_ops *ops) struct insn_emulation *insn; insn = kzalloc(sizeof(*insn), GFP_KERNEL); + if (!insn) + return; + insn->ops = ops; insn->min = INSN_UNDEF; @@ -236,6 +239,8 @@ static void __init register_insn_emulation_sysctl(void) insns_sysctl = kcalloc(nr_insn_emulated + 1, sizeof(*sysctl), GFP_KERNEL); + if (!insns_sysctl) + return; raw_spin_lock_irqsave(&insn_emulation_lock, flags); list_for_each_entry(insn, &insn_emulation, node) { -- GitLab