1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/string.h b/include/linux/string.h
index a28150fa578..b2e38ecf26e 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -143,6 +143,19 @@ void *memchr_inv(const void *, int, size_t);
  */
 void *memdup(const void *src, size_t len);
 
+/**
+ * memdup_nul() - allocate a buffer and copy in the contents, appending a nul byte
+ *
+ * Note that this returns a valid pointer even if @len is 0
+ *
+ * @src: data to copy in
+ * @len: number of bytes to copy
+ * Return: allocated buffer with the copied contents and an extra nul byte,
+ *      or NULL if not enough memory is available
+ *
+ */
+void *memdup_nul(const void *src, size_t len);
+
 unsigned long ustrtoul(const char *cp, char **endp, unsigned int base);
 unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base);