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From:   Qiujun Huang <hqjagain@gmail.com>
To:     benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.a,
        tglx@linutronix.de
Cc:     linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        Qiujun Huang <hqjagain@gmail.com>
Subject: [PATCH] powerpc/powernv: add NULL check after kzalloc in opal_add_one_export
Date:   Sun,  5 Apr 2020 15:51:23 +0800
Message-Id: <20200405075123.28756-1-hqjagain@gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Here needs a NULL check.

Issue found by coccinelle.

Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
---
 arch/powerpc/platforms/powernv/opal.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 2b3dfd0b6cdd..09443ae3a86e 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -811,6 +811,11 @@ static int opal_add_one_export(struct kobject *parent, const char *export_name,
 		goto out;
 
 	attr = kzalloc(sizeof(*attr), GFP_KERNEL);
+	if (!attr) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
 	name = kstrdup(export_name, GFP_KERNEL);
 	if (!name) {
 		rc = -ENOMEM;
-- 
2.17.1