[src/trunk]: src/sys/dev/usb Fix memory leaks. Was wondering where memory had...

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5bf9d4c2e6af
branches:  trunk
changeset: 454943:5bf9d4c2e6af
user:      maxv <maxv%NetBSD.org@localhost>
date:      Thu Oct 03 05:20:31 2019 +0000

description:
Fix memory leaks. Was wondering where memory had gone after several hours
of attach/detach with vHCI.

diffstat:

 sys/dev/usb/usb_subr.c |  13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diffs (34 lines):

diff -r 1bca2dda5b17 -r 5bf9d4c2e6af sys/dev/usb/usb_subr.c
--- a/sys/dev/usb/usb_subr.c    Thu Oct 03 05:16:16 2019 +0000
+++ b/sys/dev/usb/usb_subr.c    Thu Oct 03 05:20:31 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: usb_subr.c,v 1.240 2019/09/15 09:24:38 maxv Exp $      */
+/*     $NetBSD: usb_subr.c,v 1.241 2019/10/03 05:20:31 maxv Exp $      */
 /*     $FreeBSD: src/sys/dev/usb/usb_subr.c,v 1.18 1999/11/17 22:33:47 n_hibma Exp $   */
 
 /*
@@ -32,7 +32,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: usb_subr.c,v 1.240 2019/09/15 09:24:38 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: usb_subr.c,v 1.241 2019/10/03 05:20:31 maxv Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_compat_netbsd.h"
@@ -1479,6 +1479,15 @@
        up->up_dev = NULL;
        dev->ud_bus->ub_devices[usb_addr2dindex(dev->ud_addr)] = NULL;
 
+       if (dev->ud_vendor != NULL) {
+               kmem_free(dev->ud_vendor, USB_MAX_ENCODED_STRING_LEN);
+       }
+       if (dev->ud_product != NULL) {
+               kmem_free(dev->ud_product, USB_MAX_ENCODED_STRING_LEN);
+       }
+       if (dev->ud_serial != NULL) {
+               kmem_free(dev->ud_serial, USB_MAX_ENCODED_STRING_LEN);
+       }
        kmem_free(dev, sizeof(*dev));
 }