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- only unlock if were dealing with a process. 

- use the right mutex.
This commit is contained in:
christos 2007-06-08 17:49:13 +00:00
parent d851aeff1e
commit 19a2c6c6d2
1 changed files with 9 additions and 5 deletions
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14
sys/kern/kern_systrace.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_systrace.c,v 1.71 2007/03/12 18:18:33 ad Exp $ */
/* $NetBSD: kern_systrace.c,v 1.72 2007/06/08 17:49:13 christos Exp $ */
/*
* Copyright 2002, 2003 Niels Provos <provos@citi.umich.edu>
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_systrace.c,v 1.71 2007/03/12 18:18:33 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_systrace.c,v 1.72 2007/06/08 17:49:13 christos Exp $");
#include "opt_systrace.h"
@ -425,9 +425,13 @@ systracef_ioctl(struct file *fp, u_long cmd, void *data, struct lwp *l)
break;
}
mutex_enter(&p->p_mutex);
proc_delref(strp->proc);
mutex_exit(&p->p_mutex);
if (strp) {
struct proc *q = strp->proc;
mutex_enter(&q->p_mutex);
proc_delref(q);
mutex_exit(&q->p_mutex);
}
unlock:
SYSTRACE_UNLOCK(fst, curlwp);