X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=arch%2Fs390%2Foprofile%2Finit.c;h=0e358c2cffeb5e6bf1955ba6ca2c3de7092e03b3;hb=6815823431296082fa20c2f14007e194424660b8;hp=5995e9bc72d9c291d57df38ab66c0a1929f43dd6;hpb=a77febbef105554c5a37241cf903f48ab7bc03c7;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 5995e9b..0e358c2 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -25,7 +25,7 @@ extern void s390_backtrace(struct pt_regs * const regs, unsigned int depth);
 
 #include "hwsampler.h"
 
-#define DEFAULT_INTERVAL	4096
+#define DEFAULT_INTERVAL	4127518
 
 #define DEFAULT_SDBT_BLOCKS	1
 #define DEFAULT_SDB_BLOCKS	511
@@ -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;