NX: Use a consistent allocator in all configurations

4 files changed, 12 insertions, 6 deletions

diff --git a/nuttx/graphics/nxsu/nx_close.c b/nuttx/graphics/nxsu/nx_close.c
index c1b9d1537..848513b5c 100644
--- a/nuttx/graphics/nxsu/nx_close.c
+++ b/nuttx/graphics/nxsu/nx_close.c
@@ -88,6 +88,8 @@
 
 void nx_close(NXHANDLE handle)
 {
-  kfree(handle);
+  /* For consistency, we use the user-space allocate (if available) */
+
+  umm_free(handle);
 }
 
diff --git a/nuttx/graphics/nxsu/nx_constructwindow.c b/nuttx/graphics/nxsu/nx_constructwindow.c
index 6a0595181..1be780a2a 100644
--- a/nuttx/graphics/nxsu/nx_constructwindow.c
+++ b/nuttx/graphics/nxsu/nx_constructwindow.c
@@ -116,7 +116,7 @@ int nx_constructwindow(NXHANDLE handle, NXWINDOW wnd,
 
   if (!fe || !cb)
     {
-      kfree(wnd);
+      umm_free(wnd);
       errno = EINVAL;
       return ERROR;
     }
diff --git a/nuttx/graphics/nxsu/nx_open.c b/nuttx/graphics/nxsu/nx_open.c
index d8efcee41..4866f15ce 100644
--- a/nuttx/graphics/nxsu/nx_open.c
+++ b/nuttx/graphics/nxsu/nx_open.c
@@ -195,9 +195,11 @@ NXHANDLE nx_open(FAR NX_DRIVERTYPE *dev)
     }
 #endif
 
-  /* Allocate the NX state structure */
+  /* Allocate the NX state structure.  The user-space allocator is used
+   * (if available) for compatibility with the multi-user implementation.
+   */
 
-  fe = (FAR struct nxfe_state_s *)kzalloc(sizeof(struct nxfe_state_s));
+  fe = (FAR struct nxfe_state_s *)umm_zalloc(sizeof(struct nxfe_state_s));
   if (!fe)
     {
       errno = ENOMEM;
diff --git a/nuttx/graphics/nxsu/nx_openwindow.c b/nuttx/graphics/nxsu/nx_openwindow.c
index b1e632937..d085ad03e 100644
--- a/nuttx/graphics/nxsu/nx_openwindow.c
+++ b/nuttx/graphics/nxsu/nx_openwindow.c
@@ -103,9 +103,11 @@ NXWINDOW nx_openwindow(NXHANDLE handle, FAR const struct nx_callback_s *cb,
     }
 #endif
 
-  /* Pre-allocate the window structure */
+  /* Pre-allocate the window structure.  The user-space allocator is used (if
+   * available) for compatibility with the multi-user implementation.
+   */
 
-  wnd = (FAR struct nxbe_window_s *)kzalloc(sizeof(struct nxbe_window_s));
+  wnd = (FAR struct nxbe_window_s *)umm_zalloc(sizeof(struct nxbe_window_s));
   if (!wnd)
     {
       errno = ENOMEM;