linux-kernel - [PATCH] TOMOYO: Return error if fails to delete a domain.

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Message-Id: <1332036464-9538-1-git-send-email-santoshprasadnayak@gmail.com>
Date:	Sun, 18 Mar 2012 07:37:44 +0530
From:	santosh nayak <santoshprasadnayak@...il.com>
To:	takedakn@...data.co.jp
Cc:	penguin-kernel@...ove.SAKURA.ne.jp, james.l.morris@...cle.com,
	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
	Santosh Nayak <santoshprasadnayak@...il.com>
Subject: [PATCH] TOMOYO: Return error if fails to delete a domain.

From: Santosh Nayak <santoshprasadnayak@...il.com>

'tomoyo_write_domain' should return error from tomoyo_delete_domain()
to its caller.

Signed-off-by: Santosh Nayak <santoshprasadnayak@...il.com>
---
 security/tomoyo/common.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index c47d3ce..d13b9a7 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -1081,7 +1081,7 @@ static int tomoyo_delete_domain(char *domainname)
 	name.name = domainname;
 	tomoyo_fill_path_info(&name);
 	if (mutex_lock_interruptible(&tomoyo_policy_lock))
-		return 0;
+		return -EINTR;
 	/* Is there an active domain? */
 	list_for_each_entry_rcu(domain, &tomoyo_domain_list, list) {
 		/* Never delete tomoyo_kernel_domain */
@@ -1164,15 +1164,16 @@ static int tomoyo_write_domain(struct tomoyo_io_buffer *head)
 	bool is_select = !is_delete && tomoyo_str_starts(&data, "select ");
 	unsigned int profile;
 	if (*data == '<') {
+		int ret = 0;
 		domain = NULL;
 		if (is_delete)
-			tomoyo_delete_domain(data);
+			ret = tomoyo_delete_domain(data);
 		else if (is_select)
 			domain = tomoyo_find_domain(data);
 		else
 			domain = tomoyo_assign_domain(data, false);
 		head->w.domain = domain;
-		return 0;
+		return ret;
 	}
 	if (!domain)
 		return -EINVAL;
-- 
1.7.4.4

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