--- zzzz-none-000/linux-4.4.271/drivers/cpufreq/cpufreq_stats.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/drivers/cpufreq/cpufreq_stats.c	2023-04-19 10:22:28.000000000 +0000
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/cputime.h>
+#include <asm/mach_avm.h>
 
 static spinlock_t cpufreq_stats_lock;
 
@@ -22,7 +23,7 @@
 	unsigned long long last_time;
 	unsigned int max_state;
 	unsigned int state_num;
-	unsigned int last_index;
+	int last_index;
 	u64 *time_in_state;
 	unsigned int *freq_table;
 #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
@@ -68,6 +69,8 @@
 	ssize_t len = 0;
 	int i, j;
 
+	cpufreq_stats_update(stats);
+
 	len += snprintf(buf + len, PAGE_SIZE - len, "   From  :    To\n");
 	len += snprintf(buf + len, PAGE_SIZE - len, "         : ");
 	for (i = 0; i < stats->state_num; i++) {
@@ -190,10 +193,11 @@
 	alloc_size += count * count * sizeof(int);
 #endif
 
-	/* Allocate memory for time_in_state/freq_table/trans_table in one go */
 	stats->time_in_state = kzalloc(alloc_size, GFP_KERNEL);
-	if (!stats->time_in_state)
+	if (!stats->time_in_state) {
+		ret = -ENOMEM;
 		goto free_stat;
+	}
 
 	stats->freq_table = (unsigned int *)(stats->time_in_state + count);
 
@@ -283,10 +287,6 @@
 	old_index = stats->last_index;
 	new_index = freq_table_get_index(stats, freq->new);
 
-	/* We can't do stats->time_in_state[-1]= .. */
-	if (old_index == -1 || new_index == -1)
-		goto put_policy;
-
 	if (old_index == new_index)
 		goto put_policy;
 
@@ -294,7 +294,10 @@
 
 	stats->last_index = new_index;
 #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
-	stats->trans_table[old_index * stats->max_state + new_index]++;
+	/* From old_index ... to new_index */
+	if (old_index >= 0 && new_index >= 0) {
+		stats->trans_table[old_index * stats->max_state + new_index]++;
+	}
 #endif
 	stats->total_trans++;