linux-kernel - [PATCH v2] PM / OPP: Use snprintf to avoid kasprintf and kfree

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Date:   Thu, 21 Sep 2017 11:15:36 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     vireshk@...nel.org, nm@...com, sboyd@...eaurora.org,
        rjw@...ysocki.net, pavel@....cz, len.brown@...el.com,
        gregkh@...uxfoundation.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] PM / OPP: Use snprintf to avoid kasprintf and kfree

Use snprintf to avoid unnecessary initializations, avoid calling kfree.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
changes in v2:
             Remove kasprintf instead of error checking.

 drivers/base/power/opp/debugfs.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/base/power/opp/debugfs.c b/drivers/base/power/opp/debugfs.c
index 81cf120..a2fa785 100644
--- a/drivers/base/power/opp/debugfs.c
+++ b/drivers/base/power/opp/debugfs.c
@@ -41,16 +41,15 @@ static bool opp_debug_create_supplies(struct dev_pm_opp *opp,
 {
 	struct dentry *d;
 	int i;
-	char *name;
 
 	for (i = 0; i < opp_table->regulator_count; i++) {
-		name = kasprintf(GFP_KERNEL, "supply-%d", i);
+		char name[15];
+
+		snprintf(name, sizeof(name), "supply-%d", i);
 
 		/* Create per-opp directory */
 		d = debugfs_create_dir(name, pdentry);
 
-		kfree(name);
-
 		if (!d)
 			return false;
 
-- 
1.9.1