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-rw-r--r--arch/s390/oprofile/init.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 5995e9bc72d9..5e2ab03eaffd 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -151,6 +151,12 @@ static int oprofile_hwsampler_init(struct oprofile_operations *ops)
if (oprofile_max_interval == 0)
return -ENODEV;
+ /* The initial value should be sane */
+ if (oprofile_hw_interval < oprofile_min_interval)
+ oprofile_hw_interval = oprofile_min_interval;
+ if (oprofile_hw_interval > oprofile_max_interval)
+ oprofile_hw_interval = oprofile_max_interval;
+
if (oprofile_timer_init(ops))
return -ENODEV;