TOMOYO: Use mutex_lock_interruptible.

[net-next-2.6.git] / security / tomoyo / file.c

diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 0687ada28e8206d7c036f6ea51a23760d1d8f343..060bbf3870ce7b33e0f9e9145d6c33a6cf867eab 100644 (file)
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -176,7 +176,8 @@ static int tomoyo_update_globally_readable_entry(const char *filename,
                return -ENOMEM;
        if (!is_delete)
                entry = kmalloc(sizeof(*entry), GFP_NOFS);
-       mutex_lock(&tomoyo_policy_lock);
+       if (mutex_lock_interruptible(&tomoyo_policy_lock))
+               goto out;
        list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list, list) {
                if (ptr->filename != saved_filename)
                        continue;
@@ -192,6 +193,7 @@ static int tomoyo_update_globally_readable_entry(const char *filename,
                error = 0;
        }
        mutex_unlock(&tomoyo_policy_lock);
+ out:
        tomoyo_put_name(saved_filename);
        kfree(entry);
        return error;
@@ -323,7 +325,8 @@ static int tomoyo_update_file_pattern_entry(const char *pattern,
                goto out;
        if (!is_delete)
                entry = kmalloc(sizeof(*entry), GFP_NOFS);
-       mutex_lock(&tomoyo_policy_lock);
+       if (mutex_lock_interruptible(&tomoyo_policy_lock))
+               goto out;
        list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, list) {
                if (saved_pattern != ptr->pattern)
                        continue;
@@ -476,7 +479,8 @@ static int tomoyo_update_no_rewrite_entry(const char *pattern,
                return error;
        if (!is_delete)
                entry = kmalloc(sizeof(*entry), GFP_NOFS);
-       mutex_lock(&tomoyo_policy_lock);
+       if (mutex_lock_interruptible(&tomoyo_policy_lock))
+               goto out;
        list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, list) {
                if (ptr->pattern != saved_pattern)
                        continue;
@@ -492,6 +496,7 @@ static int tomoyo_update_no_rewrite_entry(const char *pattern,
                error = 0;
        }
        mutex_unlock(&tomoyo_policy_lock);
+ out:
        tomoyo_put_name(saved_pattern);
        kfree(entry);
        return error;
@@ -822,7 +827,8 @@ static int tomoyo_update_path_acl(const u8 type, const char *filename,
                return -ENOMEM;
        if (!is_delete)
                entry = kmalloc(sizeof(*entry), GFP_NOFS);
-       mutex_lock(&tomoyo_policy_lock);
+       if (mutex_lock_interruptible(&tomoyo_policy_lock))
+               goto out;
        list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) {
                struct tomoyo_path_acl *acl =
                        container_of(ptr, struct tomoyo_path_acl, head);
@@ -867,6 +873,7 @@ static int tomoyo_update_path_acl(const u8 type, const char *filename,
                error = 0;
        }
        mutex_unlock(&tomoyo_policy_lock);
+ out:
        kfree(entry);
        tomoyo_put_name(saved_filename);
        return error;
@@ -908,7 +915,8 @@ static int tomoyo_update_path2_acl(const u8 type, const char *filename1,
                goto out;
        if (!is_delete)
                entry = kmalloc(sizeof(*entry), GFP_NOFS);
-       mutex_lock(&tomoyo_policy_lock);
+       if (mutex_lock_interruptible(&tomoyo_policy_lock))
+               goto out;
        list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) {
                struct tomoyo_path2_acl *acl =
                        container_of(ptr, struct tomoyo_path2_acl, head);