Module Name:    src
Committed By:   mrg
Date:           Tue Sep  5 05:55:12 UTC 2023

Modified Files:
        src/sys/dev/pckbport: pms.c synaptics.c

Log Message:
panic on an condition that shouldn't be possible.

appease GCC 12.


To generate a diff of this commit:
cvs rdiff -u -r1.40 -r1.41 src/sys/dev/pckbport/pms.c
cvs rdiff -u -r1.81 -r1.82 src/sys/dev/pckbport/synaptics.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/pckbport/pms.c
diff -u src/sys/dev/pckbport/pms.c:1.40 src/sys/dev/pckbport/pms.c:1.41
--- src/sys/dev/pckbport/pms.c:1.40	Fri Oct 28 23:40:37 2022
+++ src/sys/dev/pckbport/pms.c	Tue Sep  5 05:55:12 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: pms.c,v 1.40 2022/10/28 23:40:37 riastradh Exp $ */
+/* $NetBSD: pms.c,v 1.41 2023/09/05 05:55:12 mrg Exp $ */
 
 /*-
  * Copyright (c) 2004 Kentaro Kurahone.
@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pms.c,v 1.40 2022/10/28 23:40:37 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pms.c,v 1.41 2023/09/05 05:55:12 mrg Exp $");
 
 #include "opt_pms.h"
 
@@ -561,6 +561,8 @@ pmsinput(void *vsc, int data)
 		if ((data & 0xc0) != 0)
 			return;	/* not in sync yet, discard input */
 	}
+	if (sc->inputstate >= sizeof(sc->packet))
+		panic("inputstate should never be %d", sc->inputstate);
 
 	sc->packet[sc->inputstate++] = data & 0xff;
 	switch (sc->inputstate) {

Index: src/sys/dev/pckbport/synaptics.c
diff -u src/sys/dev/pckbport/synaptics.c:1.81 src/sys/dev/pckbport/synaptics.c:1.82
--- src/sys/dev/pckbport/synaptics.c:1.81	Wed Sep 28 16:43:00 2022
+++ src/sys/dev/pckbport/synaptics.c	Tue Sep  5 05:55:12 2023
@@ -1,4 +1,4 @@
-/*	$NetBSD: synaptics.c,v 1.81 2022/09/28 16:43:00 nia Exp $	*/
+/*	$NetBSD: synaptics.c,v 1.82 2023/09/05 05:55:12 mrg Exp $	*/
 
 /*
  * Copyright (c) 2005, Steve C. Woodford
@@ -48,7 +48,7 @@
 #include "opt_pms.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: synaptics.c,v 1.81 2022/09/28 16:43:00 nia Exp $");
+__KERNEL_RCSID(0, "$NetBSD: synaptics.c,v 1.82 2023/09/05 05:55:12 mrg Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1759,6 +1759,8 @@ pms_synaptics_input(void *vsc, int data)
 			return;
 		}
 	}
+	if (psc->inputstate >= sizeof(psc->packet))
+		panic("inputstate should never be %d", psc->inputstate);
 
 	psc->packet[psc->inputstate++] = data & 0xff;
 	if (psc->inputstate == 6) {

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