From c8ab44d29c3384210cd8f27533abfd0fb2205cc5 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Thu, 1 Apr 2010 15:40:19 -0400
Subject: Set errno on failures.

---
 libdimension/canvas.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'libdimension/canvas.c')

diff --git a/libdimension/canvas.c b/libdimension/canvas.c
index 14bc156..d18d0b7 100644
--- a/libdimension/canvas.c
+++ b/libdimension/canvas.c
@@ -20,6 +20,7 @@
 
 #include "dimension.h"
 #include <pthread.h>
+#include <errno.h>
 #include <stdlib.h> /* For malloc(), free() */
 
 /* Allocate a new canvas, of width x and height y */
@@ -41,8 +42,11 @@ dmnsn_new_canvas(unsigned int x, unsigned int y)
     canvas->pixels = malloc(sizeof(dmnsn_color)*x*y);
     if (!canvas->pixels) {
       dmnsn_delete_canvas(canvas);
+      errno = ENOMEM;
       return NULL;
     }
+  } else {
+    errno = ENOMEM;
   }
 
   return canvas;
-- 
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