linux-kernel - [PATCH 5.4 140/475] memory: emif: check the pointer temp in get_device

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Message-Id: <20220414110859.065354083@linuxfoundation.org>
Date:   Thu, 14 Apr 2022 15:08:45 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jia-Ju Bai <baijiaju1990@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 140/475] memory: emif: check the pointer temp in get_device_details()

From: Jia-Ju Bai <baijiaju1990@...il.com>

[ Upstream commit 5b5ab1bfa1898c6d52936a57c25c5ceba2cb2f87 ]

The pointer temp is allocated by devm_kzalloc(), so it should be
checked for error handling.

Fixes: 7ec944538dde ("memory: emif: add basic infrastructure for EMIF driver")
Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>
Link: https://lore.kernel.org/r/20220225132552.27894-1-baijiaju1990@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/memory/emif.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index 0d6b975616bb..9c4c668f9a88 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -1423,7 +1423,7 @@ static struct emif_data *__init_or_module get_device_details(
 	temp	= devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
 	dev_info = devm_kzalloc(dev, sizeof(*dev_info), GFP_KERNEL);
 
-	if (!emif || !pd || !dev_info) {
+	if (!emif || !temp || !dev_info) {
 		dev_err(dev, "%s:%d: allocation error\n", __func__, __LINE__);
 		goto error;
 	}
-- 
2.34.1