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Subject: [PATCH 1/2] powerpc/pseries: Delete an unnecessary kfree() call in
 dlpar_store()
From:   Markus Elfring <Markus.Elfring@web.de>
To:     linuxppc-dev@lists.ozlabs.org,
        Allison Randal <allison@lohutok.net>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Frank Rowand <frank.rowand@sony.com>,
        Gen Zhang <blackgod016574@gmail.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Nathan Fontenot <nfont@linux.vnet.ibm.com>,
        Nathan Lynch <nathanl@linux.ibm.com>,
        Oliver O'Halloran <oohall@gmail.com>,
        Paul Mackerras <paulus@samba.org>,
        Thomas Gleixner <tglx@linutronix.de>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        kernel-janitors@vger.kernel.org
References: <db28c84d-ac07-6d9a-a371-c97ab72bf763@web.de>
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Date:   Tue, 27 Aug 2019 14:42:27 +0200
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 27 Aug 2019 13:34:02 +0200

A null pointer would be passed to a call of the function =E2=80=9Ckfree=E2=
=80=9D
immediately after a call of the function =E2=80=9Ckstrdup=E2=80=9D failed =
at one place.
Remove this superfluous function call.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
=2D--
 arch/powerpc/platforms/pseries/dlpar.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platfor=
ms/pseries/dlpar.c
index 16e86ba8aa20..2a783dc0cfa7 100644
=2D-- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -523,7 +523,6 @@ static ssize_t dlpar_store(struct class *class, struct=
 class_attribute *attr,
 	args =3D argbuf =3D kstrdup(buf, GFP_KERNEL);
 	if (!argbuf) {
 		pr_info("Could not allocate resources for DLPAR operation\n");
-		kfree(argbuf);
 		return -ENOMEM;
 	}

=2D-
2.23.0