linux-kernel - [PATCH] fs/adfs: bigdir: Fix an error code in adfs_fplus

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Date:   Fri, 24 Jan 2020 13:15:37 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Russell King <rmk+kernel@...linux.org.uk>
Cc:     Al Viro <viro@...iv.linux.org.uk>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Enrico Weigelt <info@...ux.net>, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] fs/adfs: bigdir: Fix an error code in adfs_fplus_read()

This code accidentally returns success, but it should return the
-EIO error code from adfs_fplus_validate_header().

Fixes: d79288b4f61b ("fs/adfs: bigdir: calculate and validate directory checkbyte")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 fs/adfs/dir_fplus.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/adfs/dir_fplus.c b/fs/adfs/dir_fplus.c
index 48ea299b6ece..4a15924014da 100644
--- a/fs/adfs/dir_fplus.c
+++ b/fs/adfs/dir_fplus.c
@@ -114,7 +114,8 @@ static int adfs_fplus_read(struct super_block *sb, u32 indaddr,
 		return ret;
 
 	dir->bighead = h = (void *)dir->bhs[0]->b_data;
-	if (adfs_fplus_validate_header(h)) {
+	ret = adfs_fplus_validate_header(h);
+	if (ret) {
 		adfs_error(sb, "dir %06x has malformed header", indaddr);
 		goto out;
 	}
-- 
2.11.0