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List: kernel-janitors
Subject: [patch] mtd: nand: sunxi: prevent a small memory leak
From: Dan Carpenter <dan.carpenter () oracle ! com>
Date: 2016-06-24 12:24:03
Message-ID: 20160624122403.GC23169 () mwanda
[Download RAW message or body]
I moved the sanity check on ecc->size before the allocation so that we
don't leak memory on error.
Fixes: 05af074a4b73 ('mtd: nand: sunxi: check ecc->size values')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index f582fe4..9f4e1c7 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -1812,13 +1812,13 @@ static int sunxi_nand_hw_common_ecc_ctrl_init(struct mtd_info *mtd,
int ret;
int i;
+ if (ecc->size != 512 && ecc->size != 1024)
+ return -EINVAL;
+
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- if (ecc->size != 512 && ecc->size != 1024)
- return -EINVAL;
-
/* Prefer 1k ECC chunk over 512 ones */
if (ecc->size == 512 && mtd->writesize > 512) {
ecc->size = 1024;
--
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