X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Fs390%2Foprofile%2Finit.c;h=0e358c2cffeb5e6bf1955ba6ca2c3de7092e03b3;hp=5995e9bc72d9c291d57df38ab66c0a1929f43dd6;hb=04b905942b482092a547798a2477f21e32a8f65d;hpb=09cefbb605ccb07c65f313253268a634e0dcd283

diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 5995e9bc72d9..0e358c2cffeb 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;