diff options
-rw-r--r-- | arch/arm/kernel/perf_event.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 979da3947f42..139e3c827369 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c | |||
@@ -746,7 +746,8 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs) | |||
746 | 746 | ||
747 | tail = (struct frame_tail __user *)regs->ARM_fp - 1; | 747 | tail = (struct frame_tail __user *)regs->ARM_fp - 1; |
748 | 748 | ||
749 | while (tail && !((unsigned long)tail & 0x3)) | 749 | while ((entry->nr < PERF_MAX_STACK_DEPTH) && |
750 | tail && !((unsigned long)tail & 0x3)) | ||
750 | tail = user_backtrace(tail, entry); | 751 | tail = user_backtrace(tail, entry); |
751 | } | 752 | } |
752 | 753 | ||