Module Name: src
Committed By: riastradh
Date: Fri Jan 14 22:28:50 UTC 2022
Modified Files:
src/sys/dev/i2c: ihidev.c
Log Message:
ihidev(4): Avoid reference count overflow.
To generate a diff of this commit:
cvs rdiff -u -r1.24 -r1.25 src/sys/dev/i2c/ihidev.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/i2c/ihidev.c
diff -u src/sys/dev/i2c/ihidev.c:1.24 src/sys/dev/i2c/ihidev.c:1.25
--- src/sys/dev/i2c/ihidev.c:1.24 Fri Jan 14 22:28:23 2022
+++ src/sys/dev/i2c/ihidev.c Fri Jan 14 22:28:50 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: ihidev.c,v 1.24 2022/01/14 22:28:23 riastradh Exp $ */
+/* $NetBSD: ihidev.c,v 1.25 2022/01/14 22:28:50 riastradh Exp $ */
/* $OpenBSD ihidev.c,v 1.13 2017/04/08 02:57:23 deraadt Exp $ */
/*-
@@ -54,7 +54,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ihidev.c,v 1.24 2022/01/14 22:28:23 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ihidev.c,v 1.25 2022/01/14 22:28:50 riastradh Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -889,7 +889,7 @@ ihidev_open(struct ihidev *scd)
mutex_enter(&sc->sc_lock);
- if (scd->sc_state & IHIDEV_OPEN) {
+ if (scd->sc_state & IHIDEV_OPEN || sc->sc_refcnt == INT_MAX) {
error = EBUSY;
goto out;
}
