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authorGeliang Tang <geliangtang@163.com>2016-03-15 22:12:34 +0800
committerSteven Rostedt <rostedt@goodmis.org>2016-03-18 10:31:34 -0400
commit6363c6b599ae67b779d01a48642a7c0d7d721814 (patch)
tree16fbe88fc9313c9a407741151bedfe03b6b14a19 /kernel/trace/ftrace.c
parent7f50d06bb6b825d34f069c6c7a1aab96ad0b94d9 (diff)
ftrace: Use kasprintf() in ftrace_profile_tracefs()
Use kasprintf() instead of kmalloc() and snprintf(). Link: http://lkml.kernel.org/r/135a7bc36e51fd9eaa57124dd2140285b771f738.1458050835.git.geliangtang@163.com Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/ftrace.c')
-rw-r--r--kernel/trace/ftrace.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index d3850cbb840f..6a93faafbea4 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1030,8 +1030,7 @@ static __init void ftrace_profile_tracefs(struct dentry *d_tracer)
for_each_possible_cpu(cpu) {
stat = &per_cpu(ftrace_profile_stats, cpu);
- /* allocate enough for function name + cpu number */
- name = kmalloc(32, GFP_KERNEL);
+ name = kasprintf(GFP_KERNEL, "function%d", cpu);
if (!name) {
/*
* The files created are permanent, if something happens
@@ -1043,7 +1042,6 @@ static __init void ftrace_profile_tracefs(struct dentry *d_tracer)
return;
}
stat->stat = function_stats;
- snprintf(name, 32, "function%d", cpu);
stat->stat.name = name;
ret = register_stat_tracer(&stat->stat);
if (ret) {