linux-kernel - [PATCH] apparmor: make aa_set_current

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Message-Id: <20230114164952.232653-1-quanfafu@gmail.com>
Date:   Sun, 15 Jan 2023 00:49:52 +0800
From:   Quanfa Fu <quanfafu@...il.com>
To:     john.johansen@...onical.com, paul@...l-moore.com,
        jmorris@...ei.org, serge@...lyn.com
Cc:     apparmor@...ts.ubuntu.com, linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, Quanfa Fu <quanfafu@...il.com>
Subject: [PATCH] apparmor: make aa_set_current_onexec return void

Change the return type to void since it always return 0, and no need
to do the checking in aa_set_current_onexec.

Signed-off-by: Quanfa Fu <quanfafu@...il.com>
---
 security/apparmor/domain.c       | 2 +-
 security/apparmor/include/task.h | 2 +-
 security/apparmor/task.c         | 5 +----
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index 6dd3cc5309bf..bbc9c8a87b8e 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -1446,7 +1446,7 @@ int aa_change_profile(const char *fqname, int flags)
 		}
 
 		/* full transition will be built in exec path */
-		error = aa_set_current_onexec(target, stack);
+		aa_set_current_onexec(target, stack);
 	}
 
 audit:
diff --git a/security/apparmor/include/task.h b/security/apparmor/include/task.h
index 13437d62c70f..01717fe432c3 100644
--- a/security/apparmor/include/task.h
+++ b/security/apparmor/include/task.h
@@ -30,7 +30,7 @@ struct aa_task_ctx {
 };
 
 int aa_replace_current_label(struct aa_label *label);
-int aa_set_current_onexec(struct aa_label *label, bool stack);
+void aa_set_current_onexec(struct aa_label *label, bool stack);
 int aa_set_current_hat(struct aa_label *label, u64 token);
 int aa_restore_previous_label(u64 cookie);
 struct aa_label *aa_get_task_label(struct task_struct *task);
diff --git a/security/apparmor/task.c b/security/apparmor/task.c
index 84d16a29bfcb..5671a716fcd2 100644
--- a/security/apparmor/task.c
+++ b/security/apparmor/task.c
@@ -93,9 +93,8 @@ int aa_replace_current_label(struct aa_label *label)
  * aa_set_current_onexec - set the tasks change_profile to happen onexec
  * @label: system label to set at exec  (MAYBE NULL to clear value)
  * @stack: whether stacking should be done
- * Returns: 0 or error on failure
  */
-int aa_set_current_onexec(struct aa_label *label, bool stack)
+void aa_set_current_onexec(struct aa_label *label, bool stack)
 {
 	struct aa_task_ctx *ctx = task_ctx(current);
 
@@ -103,8 +102,6 @@ int aa_set_current_onexec(struct aa_label *label, bool stack)
 	aa_put_label(ctx->onexec);
 	ctx->onexec = label;
 	ctx->token = stack;
-
-	return 0;
 }
 
 /**
-- 
2.31.1