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| author | Steven Rostedt <srostedt@redhat.com> | 2009-01-22 22:26:15 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-23 13:10:45 +0300 |
| commit | b06a830183b610c0a88c29a92feb7991a867ab46 (patch) | |
| tree | c90c58ddf3e34a8f19c31bdd9b6522f987bad279 | |
| parent | 94523e818f283d3c69f621406f633afff46dbf82 (diff) | |
| download | linux-b06a830183b610c0a88c29a92feb7991a867ab46.tar.xz | |
trace: fix logic to start/stop counting
The logic in the tracing_start/stop code prevents the WARN_ON
from ever detecting if a start/stop pair was mismatched.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/trace/trace.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 757ae6f7e648..2129ab9d2a48 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -610,13 +610,12 @@ void tracing_start(void) return; spin_lock_irqsave(&tracing_start_lock, flags); - if (--trace_stop_count) - goto out; - - if (trace_stop_count < 0) { - /* Someone screwed up their debugging */ - WARN_ON_ONCE(1); - trace_stop_count = 0; + if (--trace_stop_count) { + if (trace_stop_count < 0) { + /* Someone screwed up their debugging */ + WARN_ON_ONCE(1); + trace_stop_count = 0; + } goto out; } |