X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Ferrno.h;h=3af539b9e91b2150c3ad659d0e8d77907f063271;hb=a1f5f4ac20c0947afda93f9b906facfbee2708fe;hp=ccb7869e1708cde503bb0ac6e32584c51e45d40b;hpb=e8f80a5a58c9b506453cc0780687e8ed457d30a6;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/errno.h b/include/errno.h
index ccb7869..3af539b 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -12,12 +12,21 @@ extern int errno;
 
 #define __set_errno(val) do { errno = val; } while (0)
 
+/**
+ * errno_str() - get description for error number
+ *
+ * @errno:	error number (negative in case of error)
+ * Return:	string describing the error. If CONFIG_ERRNO_STR is not
+ *		defined an empty string is returned.
+ */
 #ifdef CONFIG_ERRNO_STR
 const char *errno_str(int errno);
 #else
+static const char error_message[] = "";
+
 static inline const char *errno_str(int errno)
 {
-	return 0;
+	return error_message;
 }
 #endif
 #endif /* _ERRNO_H */