linux-kernel - [PATCH] ARM: OMAP2+: Delete an unnecessary kfree() call in omap_hsmmc_pdata

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Date:   Mon, 26 Aug 2019 15:30:57 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Kishore Kadiyala <kishore.kadiyala@...com>,
        Russell King <linux@...linux.org.uk>,
        Tony Lindgren <tony@...mide.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org, Balaji T K <balajitk@...com>,
        Benoit Cousson <b-cousson@...com>,
        Paul Walmsley <paul@...an.com>
Subject: [PATCH] ARM: OMAP2+: Delete an unnecessary kfree() call in
 omap_hsmmc_pdata_init()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 26 Aug 2019 15:05:31 +0200

A null pointer would be passed to a call of the function "kfree" directly
after a call of the function "kzalloc" failed at one place.
Remove this superfluous function call.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 arch/arm/mach-omap2/hsmmc.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 14b9c13c1fa0..63423ea6a240 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -32,10 +32,8 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	char *hc_name;

 	hc_name = kzalloc(HSMMC_NAME_LEN + 1, GFP_KERNEL);
-	if (!hc_name) {
-		kfree(hc_name);
+	if (!hc_name)
 		return -ENOMEM;
-	}

 	snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i", c->mmc, 1);
 	mmc->name = hc_name;
--
2.23.0