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-rw-r--r--security/tomoyo/realpath.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index 62062a6..d1b96f0 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -223,6 +223,25 @@ bool tomoyo_memory_ok(void *ptr)
}
/**
+ * tomoyo_commit_ok - Check memory quota.
+ *
+ * @data: Data to copy from.
+ * @size: Size in byte.
+ *
+ * Returns pointer to allocated memory on success, NULL otherwise.
+ */
+void *tomoyo_commit_ok(void *data, const unsigned int size)
+{
+ void *ptr = kzalloc(size, GFP_NOFS);
+ if (tomoyo_memory_ok(ptr)) {
+ memmove(ptr, data, size);
+ memset(data, 0, size);
+ return ptr;
+ }
+ return NULL;
+}
+
+/**
* tomoyo_memory_free - Free memory for elements.
*
* @ptr: Pointer to allocated memory.
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