linux-kernel - [PATCH 1/1] kernel/trace/ftrace.c: replace kmalloc/snprintf by kasprintf

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Message-Id: <1402314441-28851-1-git-send-email-fabf@skynet.be>
Date:	Mon,  9 Jun 2014 13:47:21 +0200
From:	Fabian Frederick <fabf@...net.be>
To:	linux-kernel@...r.kernel.org
Cc:	Fabian Frederick <fabf@...net.be>,
	Steven Rostedt <rostedt@...dmis.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH 1/1] kernel/trace/ftrace.c: replace kmalloc/snprintf by kasprintf

Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
 kernel/trace/ftrace.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 4a54a25..92a3316 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1072,9 +1072,7 @@ static __init void ftrace_profile_debugfs(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
@@ -1086,7 +1084,6 @@ static __init void ftrace_profile_debugfs(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) {
@@ -1097,7 +1094,6 @@ static __init void ftrace_profile_debugfs(struct dentry *d_tracer)
 			return;
 		}
 	}
-
 	entry = debugfs_create_file("function_profile_enabled", 0644,
 				    d_tracer, NULL, &ftrace_profile_fops);
 	if (!entry)
-- 
1.8.4.5

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