--- zzzz-none-000/linux-3.10.107/arch/cris/arch-v32/kernel/fasttimer.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/cris/arch-v32/kernel/fasttimer.c	2021-02-04 17:41:59.000000000 +0000
@@ -501,7 +501,8 @@
 			i = debug_log_cnt;
 
 		while ((i != end_i || debug_log_cnt_wrapped)) {
-			if (seq_printf(m, debug_log_string[i], debug_log_value[i]) < 0)
+			seq_printf(m, debug_log_string[i], debug_log_value[i]);
+			if (seq_has_overflowed(m))
 				return 0;
 			i = (i+1) % DEBUG_LOG_MAX;
 		}
@@ -516,23 +517,21 @@
 		int cur = (fast_timers_started - i - 1) % NUM_TIMER_STATS;
 
 #if 1 //ndef FAST_TIMER_LOG
-		seq_printf(m, "div: %i delay: %i"
-			   "\n",
+		seq_printf(m, "div: %i delay: %i\n",
 			   timer_div_settings[cur],
 			   timer_delay_settings[cur]);
 #endif
 #ifdef FAST_TIMER_LOG
 		t = &timer_started_log[cur];
-		if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
-			       "d: %6li us data: 0x%08lX"
-			       "\n",
-			       t->name,
-			       (unsigned long)t->tv_set.tv_jiff,
-			       (unsigned long)t->tv_set.tv_usec,
-			       (unsigned long)t->tv_expires.tv_jiff,
-			       (unsigned long)t->tv_expires.tv_usec,
-			       t->delay_us,
-			       t->data) < 0)
+		seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu d: %6li us data: 0x%08lX\n",
+			   t->name,
+			   (unsigned long)t->tv_set.tv_jiff,
+			   (unsigned long)t->tv_set.tv_usec,
+			   (unsigned long)t->tv_expires.tv_jiff,
+			   (unsigned long)t->tv_expires.tv_usec,
+			   t->delay_us,
+			   t->data);
+		if (seq_has_overflowed(m))
 			return 0;
 #endif
 	}
@@ -544,16 +543,15 @@
 	seq_printf(m, "Timers added: %i\n", fast_timers_added);
 	for (i = 0; i < num_to_show; i++) {
 		t = &timer_added_log[(fast_timers_added - i - 1) % NUM_TIMER_STATS];
-		if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
-			       "d: %6li us data: 0x%08lX"
-			       "\n",
-			       t->name,
-			       (unsigned long)t->tv_set.tv_jiff,
-			       (unsigned long)t->tv_set.tv_usec,
-			       (unsigned long)t->tv_expires.tv_jiff,
-			       (unsigned long)t->tv_expires.tv_usec,
-			       t->delay_us,
-			       t->data) < 0)
+		seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu d: %6li us data: 0x%08lX\n",
+			   t->name,
+			   (unsigned long)t->tv_set.tv_jiff,
+			   (unsigned long)t->tv_set.tv_usec,
+			   (unsigned long)t->tv_expires.tv_jiff,
+			   (unsigned long)t->tv_expires.tv_usec,
+			   t->delay_us,
+			   t->data);
+		if (seq_has_overflowed(m))
 			return 0;
 	}
 	seq_putc(m, '\n');
@@ -563,16 +561,15 @@
 	seq_printf(m, "Timers expired: %i\n", fast_timers_expired);
 	for (i = 0; i < num_to_show; i++){
 		t = &timer_expired_log[(fast_timers_expired - i - 1) % NUM_TIMER_STATS];
-		if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
-			       "d: %6li us data: 0x%08lX"
-			       "\n",
-			       t->name,
-			       (unsigned long)t->tv_set.tv_jiff,
-			       (unsigned long)t->tv_set.tv_usec,
-			       (unsigned long)t->tv_expires.tv_jiff,
-			       (unsigned long)t->tv_expires.tv_usec,
-			       t->delay_us,
-			       t->data) < 0)
+		seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu d: %6li us data: 0x%08lX\n",
+			   t->name,
+			   (unsigned long)t->tv_set.tv_jiff,
+			   (unsigned long)t->tv_set.tv_usec,
+			   (unsigned long)t->tv_expires.tv_jiff,
+			   (unsigned long)t->tv_expires.tv_usec,
+			   t->delay_us,
+			   t->data);
+		if (seq_has_overflowed(m))
 			return 0;
 	}
 	seq_putc(m, '\n');
@@ -584,19 +581,15 @@
 	while (t != NULL){
 		nextt = t->next;
 		local_irq_restore(flags);
-		if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
-			       "d: %6li us data: 0x%08lX"
-/*			" func: 0x%08lX" */
-			       "\n",
-			       t->name,
-			       (unsigned long)t->tv_set.tv_jiff,
-			       (unsigned long)t->tv_set.tv_usec,
-			       (unsigned long)t->tv_expires.tv_jiff,
-			       (unsigned long)t->tv_expires.tv_usec,
-			       t->delay_us,
-			       t->data
-/*                      , t->function */
-			       ) < 0)
+		seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu d: %6li us data: 0x%08lX\n",
+			   t->name,
+			   (unsigned long)t->tv_set.tv_jiff,
+			   (unsigned long)t->tv_set.tv_usec,
+			   (unsigned long)t->tv_expires.tv_jiff,
+			   (unsigned long)t->tv_expires.tv_usec,
+			   t->delay_us,
+			   t->data);
+		if (seq_has_overflowed(m))
 			return 0;
 		local_irq_save(flags);
 		if (t->next != nextt)
@@ -786,7 +779,7 @@
     proc_create("fasttimer", 0, NULL, &proc_fasttimer_fops);
 #endif /* PROC_FS */
 		if (request_irq(TIMER0_INTR_VECT, timer_trig_interrupt,
-				IRQF_SHARED | IRQF_DISABLED,
+				IRQF_SHARED,
 				"fast timer int", &fast_timer_list))
 			printk(KERN_ERR "err: fasttimer irq\n");
     fast_timer_is_init = 1;