linux-kernel - [PATCH 5.4 280/453] ubifs: Fix error return code in ubifs_init

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Date:   Mon, 28 Dec 2020 13:48:36 +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, Wang ShaoBo <bobo.shaobowang@...wei.com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Richard Weinberger <richard@....at>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 280/453] ubifs: Fix error return code in ubifs_init_authentication()

From: Wang ShaoBo <bobo.shaobowang@...wei.com>

[ Upstream commit 3cded66330591cfd2554a3fd5edca8859ea365a2 ]

Fix to return PTR_ERR() error code from the error handling case where
ubifs_hash_get_desc() failed instead of 0 in ubifs_init_authentication(),
as done elsewhere in this function.

Fixes: 49525e5eecca5 ("ubifs: Add helper functions for authentication support")
Signed-off-by: Wang ShaoBo <bobo.shaobowang@...wei.com>
Reviewed-by: Sascha Hauer <s.hauer@...gutronix.de>
Signed-off-by: Richard Weinberger <richard@....at>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/ubifs/auth.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ubifs/auth.c b/fs/ubifs/auth.c
index f985a3fbbb36a..b10418b5fb719 100644
--- a/fs/ubifs/auth.c
+++ b/fs/ubifs/auth.c
@@ -352,8 +352,10 @@ int ubifs_init_authentication(struct ubifs_info *c)
 	c->authenticated = true;
 
 	c->log_hash = ubifs_hash_get_desc(c);
-	if (IS_ERR(c->log_hash))
+	if (IS_ERR(c->log_hash)) {
+		err = PTR_ERR(c->log_hash);
 		goto out_free_hmac;
+	}
 
 	err = 0;
 
-- 
2.27.0