[src/trunk]: src/sys/dev/usb Fix envsys detach paths.

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

details:   https://anonhg.NetBSD.org/src/rev/4df2c79de981
branches:  trunk
changeset: 1021677:4df2c79de981
user:      mlelstv <mlelstv%NetBSD.org@localhost>
date:      Sun Jun 13 09:28:23 2021 +0000

description:
Fix envsys detach paths.

diffstat:

 sys/dev/usb/uthum.c |  11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)

diffs (45 lines):

diff -r 5e3cc886203b -r 4df2c79de981 sys/dev/usb/uthum.c
--- a/sys/dev/usb/uthum.c       Sun Jun 13 09:27:20 2021 +0000
+++ b/sys/dev/usb/uthum.c       Sun Jun 13 09:28:23 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uthum.c,v 1.20 2020/03/14 02:35:33 christos Exp $   */
+/*     $NetBSD: uthum.c,v 1.21 2021/06/13 09:28:23 mlelstv Exp $   */
 /*     $OpenBSD: uthum.c,v 1.6 2010/01/03 18:43:02 deraadt Exp $   */
 
 /*
@@ -22,7 +22,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uthum.c,v 1.20 2020/03/14 02:35:33 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uthum.c,v 1.21 2021/06/13 09:28:23 mlelstv Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -206,12 +206,14 @@
                sc->sc_sme->sme_refresh = uthum_refresh;
 
                if (sysmon_envsys_register(sc->sc_sme)) {
+                       sysmon_envsys_destroy(sc->sc_sme);
+                       sc->sc_sme = NULL;
                        aprint_error_dev(self,
                            "unable to register with sysmon\n");
-                       sysmon_envsys_destroy(sc->sc_sme);
                }
        } else {
                sysmon_envsys_destroy(sc->sc_sme);
+               sc->sc_sme = NULL;
        }
 
        DPRINTF(("uthum_attach: complete\n"));
@@ -225,9 +227,8 @@
 
        sc->sc_dying = 1;
 
-       if (sc->sc_num_sensors > 0) {
+       if (sc->sc_sme != NULL)
                sysmon_envsys_unregister(sc->sc_sme);
-       }
 
        usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
            sc->sc_hdev.sc_dev);