Module Name:    src
Committed By:   plunky
Date:           Mon Jan 23 08:30:24 UTC 2012

Modified Files:
        src/sys/dev/usb: ubt.c

Log Message:
make sure kernel lock is held when changing isoc configuration
(this is called from sysctl and autoconf)


To generate a diff of this commit:
cvs rdiff -u -r1.43 -r1.44 src/sys/dev/usb/ubt.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/usb/ubt.c
diff -u src/sys/dev/usb/ubt.c:1.43 src/sys/dev/usb/ubt.c:1.44
--- src/sys/dev/usb/ubt.c:1.43	Sat Jan 14 21:37:17 2012
+++ src/sys/dev/usb/ubt.c	Mon Jan 23 08:30:24 2012
@@ -1,4 +1,4 @@
-/*	$NetBSD: ubt.c,v 1.43 2012/01/14 21:37:17 plunky Exp $	*/
+/*	$NetBSD: ubt.c,v 1.44 2012/01/23 08:30:24 plunky Exp $	*/
 
 /*-
  * Copyright (c) 2006 Itronix Inc.
@@ -67,7 +67,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ubt.c,v 1.43 2012/01/14 21:37:17 plunky Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ubt.c,v 1.44 2012/01/23 08:30:24 plunky Exp $");
 
 #include <sys/param.h>
 #include <sys/device.h>
@@ -727,8 +727,11 @@ ubt_sysctl_config(SYSCTLFN_ARGS)
 	if (sc->sc_enabled)
 		return EBUSY;
 
+	KERNEL_LOCK(1, curlwp);
 	sc->sc_config = t;
-	return ubt_set_isoc_config(sc);
+	error = ubt_set_isoc_config(sc);
+	KERNEL_UNLOCK_ONE(curlwp);
+	return error;
 }
 
 static void

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