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Commit 6363c6b5 authored by Geliang Tang's avatar Geliang Tang Committed by Steven Rostedt
Browse files

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: default avatarNamhyung Kim <namhyung@kernel.org>
Signed-off-by: default avatarGeliang Tang <geliangtang@163.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 7f50d06b

kernel/trace/ftrace.c

+1 −3
Original line number Diff line number Diff line
@@ -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) {