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-rw-r--r--arch/powerpc/perf/callchain_64.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/perf/callchain_64.c b/arch/powerpc/perf/callchain_64.c
index 814d1c2c2b9c..fa2a1b83b9b0 100644
--- a/arch/powerpc/perf/callchain_64.c
+++ b/arch/powerpc/perf/callchain_64.c
@@ -50,7 +50,7 @@ static int read_user_stack_64(unsigned long __user *ptr, unsigned long *ret)
((unsigned long)ptr & 7))
return -EFAULT;
- if (!probe_user_read(ret, ptr, sizeof(*ret)))
+ if (!copy_from_user_nofault(ret, ptr, sizeof(*ret)))
return 0;
return read_user_stack_slow(ptr, ret, 8);