linux-kernel - [PATCH 2/8] ima: evaluate error in init

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Date:   Mon, 27 Jan 2020 18:04:37 +0100
From:   Roberto Sassu <roberto.sassu@...wei.com>
To:     <zohar@...ux.ibm.com>, <jarkko.sakkinen@...ux.intel.com>,
        <james.bottomley@...senpartnership.com>,
        <linux-integrity@...r.kernel.org>
CC:     <linux-security-module@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <silviu.vlasceanu@...wei.com>,
        Roberto Sassu <roberto.sassu@...wei.com>
Subject: [PATCH 2/8] ima: evaluate error in init_ima()

Evaluate error in init_ima() before register_blocking_lsm_notifier() and
return if not zero.

Signed-off-by: Roberto Sassu <roberto.sassu@...wei.com>
---
 security/integrity/ima/ima_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 9fe949c6a530..2f95b133f246 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -791,6 +791,9 @@ static int __init init_ima(void)
 		error = ima_init();
 	}
 
+	if (error)
+		return error;
+
 	error = register_blocking_lsm_notifier(&ima_lsm_policy_notifier);
 	if (error)
 		pr_warn("Couldn't register LSM notifier, error %d\n", error);
-- 
2.17.1