1 files changed, 5 insertions, 9 deletions

diff --git a/drivers/hwtracing/stm/heartbeat.c b/drivers/hwtracing/stm/heartbeat.c
index 0133571b506f..3da7b673aab2 100644
--- a/drivers/hwtracing/stm/heartbeat.c
+++ b/drivers/hwtracing/stm/heartbeat.c
@@ -26,7 +26,7 @@
 static int nr_devs = 4;
 static int interval_ms = 10;
 
-module_param(nr_devs, int, 0600);
+module_param(nr_devs, int, 0400);
 module_param(interval_ms, int, 0600);
 
 static struct stm_heartbeat {
@@ -35,8 +35,6 @@ static struct stm_heartbeat {
         unsigned int            active;
 } stm_heartbeat[STM_HEARTBEAT_MAX];
 
-static unsigned int nr_instances;
-
 static const char str[] = "heartbeat stm source driver is here to serve you";
 
 static enum hrtimer_restart stm_heartbeat_hrtimer_handler(struct hrtimer *hr)
@@ -74,12 +72,12 @@ static void stm_heartbeat_unlink(struct stm_source_data *data)
 
 static int stm_heartbeat_init(void)
 {
-        int i, ret = -ENOMEM, __nr_instances = ACCESS_ONCE(nr_devs);
+        int i, ret = -ENOMEM;
 
-        if (__nr_instances < 0 || __nr_instances > STM_HEARTBEAT_MAX)
+        if (nr_devs < 0 || nr_devs > STM_HEARTBEAT_MAX)
                 return -EINVAL;
 
-        for (i = 0; i < __nr_instances; i++) {
+        for (i = 0; i < nr_devs; i++) {
                 stm_heartbeat[i].data.name =
                         kasprintf(GFP_KERNEL, "heartbeat.%d", i);
                 if (!stm_heartbeat[i].data.name)
@@ -98,8 +96,6 @@ static int stm_heartbeat_init(void)
                         goto fail_free;
         }
 
-        nr_instances = __nr_instances;
-
         return 0;
 
 fail_unregister:
@@ -116,7 +112,7 @@ static void stm_heartbeat_exit(void)
 {
         int i;
 
-        for (i = 0; i < nr_instances; i++) {
+        for (i = 0; i < nr_devs; i++) {
                 stm_source_unregister_device(&stm_heartbeat[i].data);
                 kfree(stm_heartbeat[i].data.name);
         }