linux-kernel - [PATCH v3] nvmem: brcm_nvram: check for allocation failure

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Message-ID: <20220520064516.GX4009@kadam>
Date:   Fri, 20 May 2022 09:45:16 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org,
        Dan Carpenter <dan.carpenter@...cle.com>,
        stable@...r.kernel.org,
        Rafał Miłecki <rafal@...ecki.pl>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH v3] nvmem: brcm_nvram: check for allocation failure

Check for if the kcalloc() fails.

Cc: stable@...r.kernel.org
Fixes: 6e977eaa8280 ("nvmem: brcm_nvram: parse NVRAM content into NVMEM cells")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Acked-by: Rafał Miłecki <rafal@...ecki.pl>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
v3: Update fixes tag
v2: I don't think anything changed in v2?  Added tags?

 drivers/nvmem/brcm_nvram.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/nvmem/brcm_nvram.c b/drivers/nvmem/brcm_nvram.c
index 450b927691c3..48bb8c62cbbf 100644
--- a/drivers/nvmem/brcm_nvram.c
+++ b/drivers/nvmem/brcm_nvram.c
@@ -97,6 +97,8 @@ static int brcm_nvram_parse(struct brcm_nvram *priv)
 	len = le32_to_cpu(header.len);
 
 	data = kcalloc(1, len, GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 	memcpy_fromio(data, priv->base, len);
 	data[len - 1] = '\0';
 
-- 
2.21.0