diff options
| author | Li Zefan <[email protected]> | 2009-09-22 13:51:54 +0800 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2009-09-22 10:28:53 +0200 |
| commit | 3c235a337e205da0f614e456be72881483dcde6e (patch) | |
| tree | 73dee892e0cf269793c2193e235d9701fa9a3115 | |
| parent | b8c7f1dc5ca4e0d10709182233cdab932cef593d (diff) | |
tracing: Fix off-by-one in trace_get_user()
Leave the last slot for the tailing '\0'.
Signed-off-by: Li Zefan <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Steven Rostedt <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | kernel/trace/trace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index a35925d222ba..ae17453dc0f9 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -415,7 +415,7 @@ int trace_get_user(struct trace_parser *parser, const char __user *ubuf, /* read the non-space input */ while (cnt && !isspace(ch)) { - if (parser->idx < parser->size) + if (parser->idx < parser->size - 1) parser->buffer[parser->idx++] = ch; else { ret = -EINVAL; |