Commit-ID: 3c235a337e205da0f614e456be72881483dcde6e Gitweb: http://git.kernel.org/tip/3c235a337e205da0f614e456be72881483dcde6e Author: Li Zefan <lizf@xxxxxxxxxxxxxx> AuthorDate: Tue, 22 Sep 2009 13:51:54 +0800 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Tue, 22 Sep 2009 10:28:53 +0200 tracing: Fix off-by-one in trace_get_user() Leave the last slot for the tailing '\0'. Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx> Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> LKML-Reference: <4AB865FA.5080801@xxxxxxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- 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 a35925d..ae17453 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; -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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