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authorWenji Huang <wenji.huang@oracle.com>2009-02-17 01:09:47 -0500
committerSteven Rostedt <srostedt@redhat.com>2009-02-17 12:38:24 -0500
commitd2ef7c2f0f9ab48c25eafc0ebad0df5f7930420b (patch)
treef728344561b02428d875e30a0d07143dafd52bcc /kernel/trace/trace_selftest.c
parentaf513098452b8887d7c0e15a39d7cb74479501bd (diff)
downloadop-kernel-dev-d2ef7c2f0f9ab48c25eafc0ebad0df5f7930420b.zip
op-kernel-dev-d2ef7c2f0f9ab48c25eafc0ebad0df5f7930420b.tar.gz
tracing: fix the return value of trace selftest
This patch is to fix the return value of trace_selftest_startup_sysprof and trace_selftest_startup_branch on failure. Signed-off-by: Wenji Huang <wenji.huang@oracle.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Diffstat (limited to 'kernel/trace/trace_selftest.c')
-rw-r--r--kernel/trace/trace_selftest.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 0c9aa14..c72e749 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -622,7 +622,7 @@ trace_selftest_startup_sysprof(struct tracer *trace, struct trace_array *tr)
ret = tracer_init(trace, tr);
if (ret) {
warn_failed_init_tracer(trace, ret);
- return 0;
+ return ret;
}
/* Sleep for a 1/10 of a second */
@@ -634,6 +634,11 @@ trace_selftest_startup_sysprof(struct tracer *trace, struct trace_array *tr)
trace->reset(tr);
tracing_start();
+ if (!ret && !count) {
+ printk(KERN_CONT ".. no entries found ..");
+ ret = -1;
+ }
+
return ret;
}
#endif /* CONFIG_SYSPROF_TRACER */
@@ -661,6 +666,11 @@ trace_selftest_startup_branch(struct tracer *trace, struct trace_array *tr)
trace->reset(tr);
tracing_start();
+ if (!ret && !count) {
+ printk(KERN_CONT ".. no entries found ..");
+ ret = -1;
+ }
+
return ret;
}
#endif /* CONFIG_BRANCH_TRACER */
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