commit 9beacb6c026bc979e840f022098c36f175555539
author Dan Murphy <dmurphy@ti.com> Thu Jul 23 07:01:38 2020 -0500
committer Simon Glass <sjg@chromium.org> Tue Jul 28 19:30:39 2020 -0600
tree b4f676808d2476389f86b65d43d828966d46eeb0
parent e9ab331ca6ba667f81b9ae0a21f37e8561801b16

dm: Fix build error when OF_CONTROL is not set

With OF_CONTROL disabled the build fails for
include/dm/read.h:932:10: error: ‘ENOTSUPP’ undeclared (first use in this function)
  932 |  return -ENOTSUPP;

Fixes: 45224e8f2691 ("dm: core: gracefully handle alias seq without of")
Signed-off-by: Dan Murphy <dmurphy@ti.com>

include/dm/read.h

diff --git a/include/dm/read.h b/include/dm/read.h
index f02ec95..b1a6108 100644
--- a/include/dm/read.h
+++ b/include/dm/read.h
@@ -9,6 +9,8 @@
 #ifndef _DM_READ_H
 #define _DM_READ_H
 
+#include <linux/errno.h>
+
 #include <dm/fdtaddr.h>
 #include <dm/ofnode.h>
 #include <dm/uclass.h>