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| author | Ingo Molnar <mingo@kernel.org> | 2020-07-26 19:52:16 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-07-26 19:52:30 +0200 |
| commit | 2d65685a4a6ff6ef6bfe42717222db92c04224c2 (patch) | |
| tree | 894aebbf77ce53375e999cd5c6bb34ee5d28bb9f /arch/nds32/kernel/ftrace.c | |
| parent | de0038bfaf53af0e8bc4961b7aacdcb79f43bf08 (diff) | |
| parent | fbe0d451bcea569fc0ed3455511a90646c8a9c81 (diff) | |
| download | lwn-2d65685a4a6ff6ef6bfe42717222db92c04224c2.tar.gz lwn-2d65685a4a6ff6ef6bfe42717222db92c04224c2.zip | |
Merge branch 'x86/urgent' into x86/cleanups
Refresh the branch for a dependent commit.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/nds32/kernel/ftrace.c')
| -rw-r--r-- | arch/nds32/kernel/ftrace.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/nds32/kernel/ftrace.c b/arch/nds32/kernel/ftrace.c index 22ab77ea27ad..3763b3f8c3db 100644 --- a/arch/nds32/kernel/ftrace.c +++ b/arch/nds32/kernel/ftrace.c @@ -131,13 +131,14 @@ static int __ftrace_modify_code(unsigned long pc, unsigned long *old_insn, unsigned long orig_insn[3]; if (validate) { - if (probe_kernel_read(orig_insn, (void *)pc, MCOUNT_INSN_SIZE)) + if (copy_from_kernel_nofault(orig_insn, (void *)pc, + MCOUNT_INSN_SIZE)) return -EFAULT; if (memcmp(orig_insn, old_insn, MCOUNT_INSN_SIZE)) return -EINVAL; } - if (probe_kernel_write((void *)pc, new_insn, MCOUNT_INSN_SIZE)) + if (copy_to_kernel_nofault((void *)pc, new_insn, MCOUNT_INSN_SIZE)) return -EPERM; return 0; |