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| author | Dan Williams <dan.j.williams@intel.com> | 2017-08-31 16:25:59 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-08-31 16:25:59 -0700 |
| commit | 8f98ae0c9b90bb46097e4f28e81e9ae6148e5694 (patch) | |
| tree | c1d0f0d9b0733bf3271780e45d7a1c299fe2fc48 /arch/x86/kernel/kprobes/core.c | |
| parent | 58738c495e15badd2015e19ff41f1f1ed55200bc (diff) | |
| parent | 5e405595e5bf4c09fab9ca1e7dbe5b62872757b5 (diff) | |
| download | op-kernel-dev-8f98ae0c9b90bb46097e4f28e81e9ae6148e5694.zip op-kernel-dev-8f98ae0c9b90bb46097e4f28e81e9ae6148e5694.tar.gz | |
Merge branch 'for-4.14/fs' into libnvdimm-for-next
Diffstat (limited to 'arch/x86/kernel/kprobes/core.c')
| -rw-r--r-- | arch/x86/kernel/kprobes/core.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c index 6b87780..f015371 100644 --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -457,6 +457,8 @@ static int arch_copy_kprobe(struct kprobe *p) int arch_prepare_kprobe(struct kprobe *p) { + int ret; + if (alternatives_text_reserved(p->addr, p->addr)) return -EINVAL; @@ -467,7 +469,13 @@ int arch_prepare_kprobe(struct kprobe *p) if (!p->ainsn.insn) return -ENOMEM; - return arch_copy_kprobe(p); + ret = arch_copy_kprobe(p); + if (ret) { + free_insn_slot(p->ainsn.insn, 0); + p->ainsn.insn = NULL; + } + + return ret; } void arch_arm_kprobe(struct kprobe *p) |
