From: Simon Glass <sjg@chromium.org>
Date: Sun, 8 May 2016 22:55:18 +0000 (-0600)
Subject: errno: Allow errno_str() to be used without CONFIG_ERRNO_STR
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=862887d8836643e316cd019b93b1732971c8aaf8;p=u-boot.git

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>
---

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 */