[tip:perf/urgent] tracing: update documentation of snapshot utility

[tip-bot for Hiraku Toyooka]

Commit-ID:  1abccd7419de9829bcdf9ab1f81d5f6cf74d55d3
Gitweb:     http://git.kernel.org/tip/1abccd7419de9829bcdf9ab1f81d5f6cf74d55d3
Author:     Hiraku Toyooka <hiraku.toyooka.gu@xxxxxxxxxxx>
AuthorDate: Fri, 8 Mar 2013 16:32:25 +0900
Committer:  Steven Rostedt <rostedt@xxxxxxxxxxx>
CommitDate: Fri, 8 Mar 2013 06:27:11 -0500

tracing: update documentation of snapshot utility

Now, "snapshot" file returns success on a reset of snapshot buffer
even if the buffer wasn't allocated, instead of returning EINVAL.
This patch updates snapshot desctiption according to the change.

Link: http://lkml.kernel.org/r/51399409.4090207@xxxxxxxxxxx

Signed-off-by: Hiraku Toyooka <hiraku.toyooka.gu@xxxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
 Documentation/trace/ftrace.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index 53d6a3c..a372304 100644
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -1873,7 +1873,7 @@ feature:
 
 	status\input  |     0      |     1      |    else    |
 	--------------+------------+------------+------------+
-	not allocated |(do nothing)| alloc+swap |   EINVAL   |
+	not allocated |(do nothing)| alloc+swap |(do nothing)|
 	--------------+------------+------------+------------+
 	allocated     |    free    |    swap    |   clear    |
 	--------------+------------+------------+------------+
--
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