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Message-Id: <20210301161053.449674613@linuxfoundation.org>
Date:   Mon,  1 Mar 2021 17:10:48 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 104/340] mtd: parser: imagetag: fix error codes in bcm963xx_parse_imagetag_partitions()

From: Dan Carpenter <dan.carpenter@...cle.com>

[ Upstream commit 12ba8f8ce29fdd277f3100052eddc1afd2f5ea3f ]

If the kstrtouint() calls fail, then this should return a negative
error code but it currently returns success.

Fixes: dd84cb022b31 ("mtd: bcm63xxpart: move imagetag parsing to its own parser")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Link: https://lore.kernel.org/linux-mtd/YBKFtNaFHGYBj+u4@mwanda
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/mtd/parsers/parser_imagetag.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/parsers/parser_imagetag.c b/drivers/mtd/parsers/parser_imagetag.c
index d69607b482272..fab0949aabba1 100644
--- a/drivers/mtd/parsers/parser_imagetag.c
+++ b/drivers/mtd/parsers/parser_imagetag.c
@@ -83,6 +83,7 @@ static int bcm963xx_parse_imagetag_partitions(struct mtd_info *master,
 			pr_err("invalid rootfs address: %*ph\n",
 				(int)sizeof(buf->flash_image_start),
 				buf->flash_image_start);
+			ret = -EINVAL;
 			goto out;
 		}
 
@@ -92,6 +93,7 @@ static int bcm963xx_parse_imagetag_partitions(struct mtd_info *master,
 			pr_err("invalid kernel address: %*ph\n",
 				(int)sizeof(buf->kernel_address),
 				buf->kernel_address);
+			ret = -EINVAL;
 			goto out;
 		}
 
@@ -100,6 +102,7 @@ static int bcm963xx_parse_imagetag_partitions(struct mtd_info *master,
 			pr_err("invalid kernel length: %*ph\n",
 				(int)sizeof(buf->kernel_length),
 				buf->kernel_length);
+			ret = -EINVAL;
 			goto out;
 		}
 
@@ -108,6 +111,7 @@ static int bcm963xx_parse_imagetag_partitions(struct mtd_info *master,
 			pr_err("invalid total length: %*ph\n",
 				(int)sizeof(buf->total_length),
 				buf->total_length);
+			ret = -EINVAL;
 			goto out;
 		}
 
-- 
2.27.0



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