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authorSteven Rostedt <srostedt@redhat.com>2009-02-05 01:13:38 -0500
committerIngo Molnar <mingo@elte.hu>2009-02-05 14:35:47 +0100
commitdac74940289f350c2590bec92737833bad608541 (patch)
tree94ee2c4b8c365b3e53ae735f0e3ac6b8e9df6949 /kernel
parent7be421510b91491d5aa5a29fa1005712039b95af (diff)
trace: code style clean up
Ingo Molnar suggested using goto logic to keep the indentation down and to be able to remove the nasty line breaks. This actually makes the code a bit more readable. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 1d4ff568cc4..3536ef41575 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -522,23 +522,24 @@ int register_tracer(struct tracer *type)
tracing_selftest_running = false;
mutex_unlock(&trace_types_lock);
- if (!ret && default_bootup_tracer) {
- if (!strncmp(default_bootup_tracer, type->name,
- BOOTUP_TRACER_SIZE)) {
- printk(KERN_INFO "Starting tracer '%s'\n",
- type->name);
- /* Do we want this tracer to start on bootup? */
- tracing_set_tracer(type->name);
- default_bootup_tracer = NULL;
- /* disable other selftests, since this will break it. */
- tracing_selftest_disabled = 1;
+ if (ret || !default_bootup_tracer)
+ goto out_unlock;
+
+ if (strncmp(default_bootup_tracer, type->name, BOOTUP_TRACER_SIZE))
+ goto out_unlock;
+
+ printk(KERN_INFO "Starting tracer '%s'\n", type->name);
+ /* Do we want this tracer to start on bootup? */
+ tracing_set_tracer(type->name);
+ default_bootup_tracer = NULL;
+ /* disable other selftests, since this will break it. */
+ tracing_selftest_disabled = 1;
#ifdef CONFIG_FTRACE_STARTUP_TEST
- printk(KERN_INFO "Disabling FTRACE selftests due"
- " to running tracer '%s'\n", type->name);
+ printk(KERN_INFO "Disabling FTRACE selftests due to running tracer '%s'\n",
+ type->name);
#endif
- }
- }
+ out_unlock:
lock_kernel();
return ret;
}