diff options
| -rw-r--r-- | sys/cddl/dev/systrace/systrace.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/cddl/dev/systrace/systrace.c b/sys/cddl/dev/systrace/systrace.c index 88e680a..014a007 100644 --- a/sys/cddl/dev/systrace/systrace.c +++ b/sys/cddl/dev/systrace/systrace.c @@ -193,7 +193,8 @@ systrace_probe(struct syscall_args *sa, enum systrace_probe_t type, int retval) memset(uargs, 0, sizeof(uargs)); if (type == SYSTRACE_ENTRY) { - id = sa->callp->sy_entry; + if ((id = sa->callp->sy_entry) == DTRACE_IDNONE) + return; if (sa->callp->sy_systrace_args_func != NULL) /* @@ -215,7 +216,8 @@ systrace_probe(struct syscall_args *sa, enum systrace_probe_t type, int retval) */ curthread->t_dtrace_systrace_args = uargs; } else { - id = sa->callp->sy_return; + if ((id = sa->callp->sy_return) == DTRACE_IDNONE) + return; curthread->t_dtrace_systrace_args = NULL; /* Set arg0 and arg1 as the return value of this syscall. */ |
