edison: fix SPI IO pointers usage

[contrib/mraa.git] / api / mraa / common.h

diff --git a/api/mraa/common.h b/api/mraa/common.h
index 58afb82..ef67c49 100644 (file)
--- a/api/mraa/common.h
+++ b/api/mraa/common.h
@@ -36,6 +36,13 @@
 #define MRAA_MAIN_PLATFORM_OFFSET 0
 #define MRAA_SUB_PLATFORM_OFFSET 1
 
+/** Executes function func and returns its result in case of error
+ */
+#define MRAA_RETURN_FOR_ERROR(func) do { \
+                                      mraa_result_t res; \
+                                      res = func; \
+                                      if (res != MRAA_SUCCESS) \
+                                      return res;} while(0)
 
 /** @file
  *