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authorChangbin Du <changbin.du@intel.com>2018-01-16 17:02:30 +0800
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2018-01-23 15:57:28 -0500
commitf4d0706cde27f29ff89e6bf94ded4113f8fe6e80 (patch)
tree5cd8ddafa8948c8f64fb52c88d61f85d2d773cb7 /kernel/trace/ftrace.c
parent76638d96502744b0d593f2386b75ae5a017c13bb (diff)
tracing: Make sure the parsed string always terminates with '\0'
Always mark the parsed string with a terminated nul '\0' character. This removes the need for the users to have to append the '\0' before using the parsed string. Link: http://lkml.kernel.org/r/1516093350-12045-4-git-send-email-changbin.du@intel.com Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Changbin Du <changbin.du@intel.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/ftrace.c')
-rw-r--r--kernel/trace/ftrace.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 554b517c61a0..dabd9d167d42 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -5015,7 +5015,6 @@ int ftrace_regex_release(struct inode *inode, struct file *file)
parser = &iter->parser;
if (trace_parser_loaded(parser)) {
- parser->buffer[parser->idx] = 0;
ftrace_match_records(iter->hash, parser->buffer, parser->idx);
}
@@ -5329,7 +5328,6 @@ ftrace_graph_release(struct inode *inode, struct file *file)
parser = &fgd->parser;
if (trace_parser_loaded((parser))) {
- parser->buffer[parser->idx] = 0;
ret = ftrace_graph_set_hash(fgd->new_hash,
parser->buffer);
}