From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 18 Sep 2018 16:53:32 +0000 (-0700)
Subject: Input: uinput - allow for max == min during input_absinfo validation
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4fef1250eafddc5182cd5c3c354a6971bcf7520d;p=linux.git

Input: uinput - allow for max == min during input_absinfo validation

These values are inclusive, so a range of 1 requires min == max.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---

diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 96a887f336982..eb14ddf693467 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -410,7 +410,7 @@ static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code,
 	min = abs->minimum;
 	max = abs->maximum;
 
-	if ((min != 0 || max != 0) && max <= min) {
+	if ((min != 0 || max != 0) && max < min) {
 		printk(KERN_DEBUG
 		       "%s: invalid abs[%02x] min:%d max:%d\n",
 		       UINPUT_NAME, code, min, max);