Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 8ec483e..84051f2 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* User level driver support for input subsystem
*
* Heavily based on evdev.c by Vojtech Pavlik
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
* Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
*
* Changes/Revisions:
@@ -39,6 +26,7 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
+#include <linux/overflow.h>
#include <linux/input/mt.h>
#include "../input-compat.h"
@@ -397,7 +385,7 @@
newdev->state = UIST_NEW_DEVICE;
file->private_data = newdev;
- nonseekable_open(inode, file);
+ stream_open(inode, file);
return 0;
}
@@ -405,7 +393,7 @@
static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code,
const struct input_absinfo *abs)
{
- int min, max;
+ int min, max, range;
min = abs->minimum;
max = abs->maximum;
@@ -417,7 +405,7 @@
return -EINVAL;
}
- if (abs->flat > max - min) {
+ if (!check_sub_overflow(max, min, &range) && abs->flat > range) {
printk(KERN_DEBUG
"%s: abs_flat #%02x out of range: %d (min:%d/max:%d)\n",
UINPUT_NAME, code, abs->flat, min, max);
@@ -1050,13 +1038,31 @@
#ifdef CONFIG_COMPAT
-#define UI_SET_PHYS_COMPAT _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+/*
+ * These IOCTLs change their size and thus their numbers between
+ * 32 and 64 bits.
+ */
+#define UI_SET_PHYS_COMPAT \
+ _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+#define UI_BEGIN_FF_UPLOAD_COMPAT \
+ _IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload_compat)
+#define UI_END_FF_UPLOAD_COMPAT \
+ _IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload_compat)
static long uinput_compat_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
- if (cmd == UI_SET_PHYS_COMPAT)
+ switch (cmd) {
+ case UI_SET_PHYS_COMPAT:
cmd = UI_SET_PHYS;
+ break;
+ case UI_BEGIN_FF_UPLOAD_COMPAT:
+ cmd = UI_BEGIN_FF_UPLOAD;
+ break;
+ case UI_END_FF_UPLOAD_COMPAT:
+ cmd = UI_END_FF_UPLOAD;
+ break;
+ }
return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
}