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authorYunfeng Ye <yeyunfeng@huawei.com>2019-09-29 06:44:17 +0200
committerWill Deacon <will@kernel.org>2019-10-08 14:34:04 +0200
commit3e7c93bd04edfb0cae7dad1215544c9350254b8f (patch)
tree667791d9c4ec56b544a6ebd4dc57d8c4537b8755 /arch/arm64
parentarm64: Kconfig: Make CONFIG_COMPAT_VDSO a proper Kconfig option (diff)
downloadlinux-3e7c93bd04edfb0cae7dad1215544c9350254b8f.tar.xz
linux-3e7c93bd04edfb0cae7dad1215544c9350254b8f.zip
arm64: armv8_deprecated: Checking return value for memory allocation
There are no return value checking when using kzalloc() and kcalloc() for memory allocation. so add it. Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64')
-rw-r--r--arch/arm64/kernel/armv8_deprecated.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index 2ec09debc2bb..ca158be21f83 100644
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -174,6 +174,9 @@ 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;
@@ -233,6 +236,8 @@ 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) {