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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
[pandora-kernel.git]
/
arch
/
arm
/
kernel
/
perf_event.c
diff --git
a/arch/arm/kernel/perf_event.c
b/arch/arm/kernel/perf_event.c
index
979da39
..
139e3c8
100644
(file)
--- 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)
tail = (struct frame_tail __user *)regs->ARM_fp - 1;
- while (tail && !((unsigned long)tail & 0x3))
+ while ((entry->nr < PERF_MAX_STACK_DEPTH) &&
+ tail && !((unsigned long)tail & 0x3))
tail = user_backtrace(tail, entry);
}