diff --git a/src/cocoa_monitor.m b/src/cocoa_monitor.m
index 129e46b7..028adfac 100644
--- a/src/cocoa_monitor.m
+++ b/src/cocoa_monitor.m
@@ -244,21 +244,10 @@ _GLFWmonitor** _glfwPlatformGetMonitors(int* count)
     CGGetActiveDisplayList(0, NULL, &monitorCount);
 
     displays = (CGDirectDisplayID*) calloc(monitorCount, sizeof(CGDirectDisplayID));
-    if (!displays)
-    {
-        _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
-        return NULL;
-    }
+    monitors = (_GLFWmonitor**) calloc(monitorCount, sizeof(_GLFWmonitor*));
 
     CGGetActiveDisplayList(monitorCount, displays, &monitorCount);
 
-    monitors = (_GLFWmonitor**) calloc(monitorCount, sizeof(_GLFWmonitor*));
-    if (!monitors)
-    {
-        _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
-        return NULL;
-    }
-
     for (i = 0;  i < monitorCount;  i++)
     {
         const CGSize size = CGDisplayScreenSize(displays[i]);
diff --git a/src/monitor.c b/src/monitor.c
index a9d7af4f..effaf609 100644
--- a/src/monitor.c
+++ b/src/monitor.c
@@ -158,12 +158,6 @@ void _glfwInputMonitorChange(void)
 _GLFWmonitor* _glfwCreateMonitor(const char* name, int widthMM, int heightMM)
 {
     _GLFWmonitor* monitor = (_GLFWmonitor*) calloc(1, sizeof(_GLFWmonitor));
-    if (!monitor)
-    {
-        _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
-        return NULL;
-    }
-
     monitor->name = strdup(name);
     monitor->widthMM = widthMM;
     monitor->heightMM = heightMM;
diff --git a/src/window.c b/src/window.c
index 5b5daf5a..fb4dc070 100644
--- a/src/window.c
+++ b/src/window.c
@@ -193,12 +193,6 @@ GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height,
         return GL_FALSE;
 
     window = (_GLFWwindow*) calloc(1, sizeof(_GLFWwindow));
-    if (!window)
-    {
-        _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
-        return NULL;
-    }
-
     window->next = _glfw.windowListHead;
     _glfw.windowListHead = window;
 
diff --git a/src/x11_monitor.c b/src/x11_monitor.c
index 462f066f..2578d2dc 100644
--- a/src/x11_monitor.c
+++ b/src/x11_monitor.c
@@ -157,13 +157,6 @@ _GLFWmonitor** _glfwPlatformGetMonitors(int* found)
         primary = XRRGetOutputPrimary(_glfw.x11.display, _glfw.x11.root);
 
         monitors = (_GLFWmonitor**) calloc(sr->noutput, sizeof(_GLFWmonitor*));
-        if (!monitors)
-        {
-            XRRFreeScreenResources(sr);
-
-            _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
-            return NULL;
-        }
 
         for (i = 0;  i < sr->ncrtc;  i++)
         {
@@ -220,12 +213,6 @@ _GLFWmonitor** _glfwPlatformGetMonitors(int* found)
     else
     {
         monitors = (_GLFWmonitor**) calloc(1, sizeof(_GLFWmonitor*));
-        if (!monitors)
-        {
-            _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
-            return NULL;
-        }
-
         monitors[0] = _glfwCreateMonitor("Display",
                                          DisplayWidthMM(_glfw.x11.display,
                                                         _glfw.x11.screen),