constify path argument of audit_log_d_path()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/kernel/audit.c b/kernel/audit.c
index bb0eb5b..1c7f2c6 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1418,7 +1418,7 @@
 
 /* This is a helper-function to print the escaped d_path */
 void audit_log_d_path(struct audit_buffer *ab, const char *prefix,
-		      struct path *path)
+		      const struct path *path)
 {
 	char *p, *pathname;