add some sizes to free(9)

[Ted Unangst]

kern files, easy fixes.

Index: kern_sensors.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_sensors.c,v
retrieving revision 1.29
diff -u -p -r1.29 kern_sensors.c
--- kern_sensors.c      14 Sep 2014 14:17:25 -0000      1.29
+++ kern_sensors.c      30 Oct 2014 17:33:29 -0000
@@ -247,7 +247,7 @@ sensor_task_work(void *xst, void *arg)
        rw_exit_write(&st->lock);
 
        if (period == 0)
-               free(st, M_DEVBUF, 0);
+               free(st, M_DEVBUF, sizeof(struct sensor_task));
        else 
                timeout_add_sec(&st->timeout, period);
 }
Index: kern_subr.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_subr.c,v
retrieving revision 1.40
diff -u -p -r1.40 kern_subr.c
--- kern_subr.c 13 Jul 2014 15:48:41 -0000      1.40
+++ kern_subr.c 30 Oct 2014 17:32:56 -0000
@@ -221,7 +221,7 @@ hook_disestablish(struct hook_desc_head 
 #endif
        hdp = vhook;
        TAILQ_REMOVE(head, hdp, hd_list);
-       free(hdp, M_DEVBUF, 0);
+       free(hdp, M_DEVBUF, sizeof(*hdp));
 }
 
 /*
@@ -244,7 +244,7 @@ dohooks(struct hook_desc_head *head, int
                        TAILQ_REMOVE(head, hdp, hd_list);
                        (*hdp->hd_fn)(hdp->hd_arg);
                        if ((flags & HOOK_FREE) != 0)
-                               free(hdp, M_DEVBUF, 0);
+                               free(hdp, M_DEVBUF, sizeof(*hdp));
                }
        }
 }
Index: kern_sysctl.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_sysctl.c,v
retrieving revision 1.267
diff -u -p -r1.267 kern_sysctl.c
--- kern_sysctl.c       17 Oct 2014 01:51:39 -0000      1.267
+++ kern_sysctl.c       30 Oct 2014 17:30:59 -0000
@@ -1288,7 +1288,7 @@ sysctl_file(int *name, u_int namelen, ch
                error = EINVAL;
                break;
        }
-       free(kf, M_TEMP, 0);
+       free(kf, M_TEMP, sizeof(*kf));
 
        if (!error) {
                if (where == NULL)
@@ -1451,7 +1451,7 @@ again:
        }
 err:
        if (kproc)
-               free(kproc, M_TEMP, 0);
+               free(kproc, M_TEMP, sizeof(*kproc));
        return (error);
 }
 
@@ -1732,7 +1732,7 @@ more:
 
 out:
        uvmspace_free(vm);
-       free(buf, M_TEMP, 0);
+       free(buf, M_TEMP, PAGE_SIZE);
        return (error);
 }
 
@@ -1796,7 +1796,7 @@ sysctl_proc_cwd(int *name, u_int namelen
        }
 
        vrele(vp);
-       free(path, M_TEMP, 0);
+       free(path, M_TEMP, len);
 
        return (error);
 }
@@ -2095,7 +2095,7 @@ sysctl_sensors(int *name, u_int namelen,
                ret = sysctl_rdstruct(oldp, oldlenp, newp, usd,
                    sizeof(struct sensordev));
 
-               free(usd, M_TEMP, 0);
+               free(usd, M_TEMP, sizeof(*usd));
                return (ret);
        }
 
@@ -2118,7 +2118,7 @@ sysctl_sensors(int *name, u_int namelen,
 
        ret = sysctl_rdstruct(oldp, oldlenp, newp, us,
            sizeof(struct sensor));
-       free(us, M_TEMP, 0);
+       free(us, M_TEMP, sizeof(*us));
        return (ret);
 }
 
Index: kern_task.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_task.c,v
retrieving revision 1.11
diff -u -p -r1.11 kern_task.c
--- kern_task.c 8 Oct 2014 15:28:39 -0000       1.11
+++ kern_task.c 30 Oct 2014 17:31:46 -0000
@@ -129,7 +129,7 @@ taskq_destroy(struct taskq *tq)
        }
        mtx_leave(&tq->tq_mtx);
 
-       free(tq, M_DEVBUF, 0);
+       free(tq, M_DEVBUF, sizeof(*tq));
 }
 
 void
@@ -143,7 +143,7 @@ taskq_create_thread(void *arg)
        switch (tq->tq_state) {
        case TQ_S_DESTROYED:
                mtx_leave(&tq->tq_mtx);
-               free(tq, M_DEVBUF, 0);
+               free(tq, M_DEVBUF, sizeof(*tq));
                return;
 
        case TQ_S_CREATED:
Index: kern_tc.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_tc.c,v
retrieving revision 1.26
diff -u -p -r1.26 kern_tc.c
--- kern_tc.c   14 Sep 2014 14:17:25 -0000      1.26
+++ kern_tc.c   30 Oct 2014 17:32:19 -0000
@@ -541,7 +541,7 @@ sysctl_tc_choice(void *oldp, size_t *old
                strlcat(choices, buf, maxlen);
        }
        error = sysctl_rdstring(oldp, oldlenp, newp, choices);
-       free(choices, M_TEMP, 0);
+       free(choices, M_TEMP, maxlen);
        return (error);
 }
 
Index: kern_workq.c
===================================================================
RCS file: /cvs/src/sys/kern/kern_workq.c,v
retrieving revision 1.16
diff -u -p -r1.16 kern_workq.c
--- kern_workq.c        8 Oct 2014 15:28:39 -0000       1.16
+++ kern_workq.c        30 Oct 2014 17:31:29 -0000
@@ -116,7 +116,7 @@ workq_destroy(struct workq *wq)
        }
        mtx_leave(&wq->wq_mtx);
 
-       free(wq, M_DEVBUF, 0);
+       free(wq, M_DEVBUF, sizeof(*wq));
 }
 
 int
@@ -164,7 +164,7 @@ workq_create_thread(void *arg)
        switch (wq->wq_state) {
        case WQ_S_DESTROYED:
                mtx_leave(&wq->wq_mtx);
-               free(wq, M_DEVBUF, 0);
+               free(wq, M_DEVBUF, sizeof(*wq));
                return;
 
        case WQ_S_CREATED: