[PATCH 05/11] tracing: use << to print < instead of \<

[Steven Rostedt <rostedt@goodmis.org>]

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From: Steven Rostedt <srostedt@redhat.com>

The print formats are passed through sprintf for processing. This means that
we can not use % or \ unless we process it for printk. Trying to use \< to
print a single < breaks the sprintf processing.

Instead, to print a single '<' a '<<' is used instead.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace_read_binary.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/trace_read_binary.c b/kernel/trace/trace_read_binary.c
index a4b5eaa..d005138 100644
--- a/kernel/trace/trace_read_binary.c
+++ b/kernel/trace/trace_read_binary.c
@@ -35,7 +35,7 @@ static struct trace_seq buffer;
  * FALSE := print when field is zero or NULL
  * NAME := the name to write when a match is found
  *
- * A '\<' would print '<'
+ * A '<<' would print '<'
  *
  * Commands:
  *  int       : Print the field out as an signed integer. The size of the field
@@ -555,11 +555,11 @@ ftrace_initialize_print(struct ftrace_event_call *event, const char *fmt, ...)
 				goto err_free;
 			break;
 		}
-		if (*(tok - 1) == '\\') {
+		if (*(tok + 1) == '<') {
 			ret = add_less_than(event, fmt, tok);
 			if (ret)
 				goto err_free;
-			fmt = tok + 1;
+			fmt = tok + 2;
 			continue;
 		}
 
-- 
1.6.3.1

--