From 862887d8836643e316cd019b93b1732971c8aaf8 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Sun, 8 May 2016 16:55:18 -0600
Subject: [PATCH] errno: Allow errno_str() to be used without CONFIG_ERRNO_STR
The pmic framework uses errno_str() and this requires board that use it to
enable CONFIG_ERRNO_STR to avoid a build error. Update the header to provide
a NULL error message when CONFIG_ERRNO_STR is not defined, and fix the build
error.
This will show as "(null)" when U-Boot prints it.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
---
include/errno.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/errno.h b/include/errno.h
index 39426818e0..15ece2f97f 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -15,5 +15,10 @@ extern int errno;
#ifdef CONFIG_ERRNO_STR
const char *errno_str(int errno);
+#else
+static inline const char *errno_str(int errno)
+{
+ return 0;
+}
#endif
#endif /* _ERRNO_H */
--
2.39.5