homework-fscrypt: pass the right error variable

(cherry picked from commit 11bbc1f)
(cherry picked from commit 9aeadf5)
(cherry picked from commit bb7e9d1)

Author: dtardon

src/home/homework-fscrypt.c

@@ -212,7 +212,7 @@ static int fscrypt_setup(
 
         r = flistxattr_malloc(setup->root_fd, &xattr_buf);
         if (r < 0)
-                return log_error_errno(errno, "Failed to retrieve xattr list: %m");
+                return log_error_errno(r, "Failed to retrieve xattr list: %m");
 
         NULSTR_FOREACH(xa, xattr_buf) {
                 _cleanup_free_ void *salt = NULL, *encrypted = NULL;
@@ -649,7 +649,7 @@ int home_passwd_fscrypt(
 
         r = flistxattr_malloc(setup->root_fd, &xattr_buf);
         if (r < 0)
-                return log_error_errno(errno, "Failed to retrieve xattr list: %m");
+                return log_error_errno(r, "Failed to retrieve xattr list: %m");
 
         NULSTR_FOREACH(xa, xattr_buf) {
                 const char *nr;