From c7f0966deb46aab6be35cb68cab1e097b87dd81c Mon Sep 17 00:00:00 2001
From: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Date: Fri, 17 Mar 2017 17:41:36 +0100
Subject: [PATCH] debounce: use signed time values

---
 plugins/debounce.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/plugins/debounce.c b/plugins/debounce.c
index 277841fa..3da39b64 100644
--- a/plugins/debounce.c
+++ b/plugins/debounce.c
@@ -32,9 +32,9 @@
 struct tslib_debounce {
 	struct tslib_module_info	module;
 	unsigned int			drop_threshold; /* ms */
-	unsigned long long		last_release;
+	long long			last_release;
 	int				last_pressure;
-	unsigned long long		*last_release_mt;
+	long long			*last_release_mt;
 	int				*last_pressure_mt;
 	int				current_max_slots;
 };
@@ -46,8 +46,8 @@ static int debounce_read(struct tslib_module_info *info, struct ts_sample *samp,
 	int ret;
 	int num = 0;
 	int i;
-	unsigned long long now;
-	unsigned long dt;
+	long long now;
+	long dt;
 	__attribute__ ((unused)) enum { DOWN, MOVE, UP } mode;
 	int drop = 0;
 	int left;
@@ -58,7 +58,7 @@ static int debounce_read(struct tslib_module_info *info, struct ts_sample *samp,
 
 	for (s = samp, i = 0; i < ret; i++, s++) {
 		now = s->tv.tv_sec * 1e6 + s->tv.tv_usec;
-		dt = (unsigned long)(now - p->last_release) / 1000; /* ms */
+		dt = (long)(now - p->last_release) / 1000; /* ms */
 		mode = MOVE;
 
 		if (!s->pressure) {
@@ -102,8 +102,8 @@ static int debounce_read_mt(struct tslib_module_info *info, struct ts_sample_mt
 {
 	struct tslib_debounce *p = (struct tslib_debounce *)info;
 	int ret;
-	unsigned long long now;
-	unsigned long dt;
+	long long now;
+	long dt;
 	__attribute__ ((unused)) enum { DOWN, MOVE, UP } mode[max_slots];
 	int drop = 0;
 	int nr;
@@ -113,7 +113,7 @@ static int debounce_read_mt(struct tslib_module_info *info, struct ts_sample_mt
 		if (p->last_release_mt)
 			free(p->last_release_mt);
 
-		p->last_release_mt = calloc(max_slots, sizeof(unsigned long long));
+		p->last_release_mt = calloc(max_slots, sizeof(long long));
 		if (!p->last_release_mt)
 			return -ENOMEM;
 
@@ -145,7 +145,7 @@ static int debounce_read_mt(struct tslib_module_info *info, struct ts_sample_mt
 				continue;
 
 			now = samp[nr][i].tv.tv_sec * 1e6 + samp[nr][i].tv.tv_usec;
-			dt = (unsigned long)(now - p->last_release_mt[i]) / 1000; /* ms */
+			dt = (long)(now - p->last_release_mt[i]) / 1000; /* ms */
 			mode[i] = MOVE;
 
 			if (!samp[nr][i].pressure) {