More changes for a kernel-mode allocator (more to be done)

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5724 42af7a65-404d-4744-a932-0658087f49c3

2 files changed, 13 insertions, 8 deletions

diff --git a/nuttx/arch/arm/src/lpc43xx/lpc43_allocateheap.c b/nuttx/arch/arm/src/lpc43xx/lpc43_allocateheap.c
index ef96bcb0c..c33f9f1ed 100644
--- a/nuttx/arch/arm/src/lpc43xx/lpc43_allocateheap.c
+++ b/nuttx/arch/arm/src/lpc43xx/lpc43_allocateheap.c
@@ -228,10 +228,14 @@ const uint32_t g_heapbase = (uint32_t)&_ebss + CONFIG_IDLETHREAD_STACKSIZE;
  * Name: up_allocate_heap
  *
  * Description:
- *   The heap may be statically allocated by
- *   defining CONFIG_HEAP_BASE and CONFIG_HEAP_SIZE.  If these
- *   are not defined, then this function will be called to
- *   dynamically set aside the heap region.
+ *   This function will be called to dynamically set aside the heap region.
+ *
+ *   For the kernel build (CONFIG_NUTTX_KERNEL=y) with both kernel- and
+ *   user-space heaps (CONFIG_MM_KERNEL_HEAP=y), this function provides the
+ *   size of the unprotected, user-space heap.
+ *
+ *   If a protected kernel-space heap is provided, the kernel heap must be
+ *   allocated (and protected) by an analogous up_allocate_kheap().
  *
  ****************************************************************************/
 
diff --git a/nuttx/arch/arm/src/lpc43xx/lpc43_usb0dev.c b/nuttx/arch/arm/src/lpc43xx/lpc43_usb0dev.c
index d0af116d6..379dbc435 100644
--- a/nuttx/arch/arm/src/lpc43xx/lpc43_usb0dev.c
+++ b/nuttx/arch/arm/src/lpc43xx/lpc43_usb0dev.c
@@ -58,6 +58,7 @@
 #include <debug.h>
 
 #include <nuttx/arch.h>
+#include <nuttx/kmalloc.h>
 #include <nuttx/usb/usb.h>
 #include <nuttx/usb/usbdev.h>
 #include <nuttx/usb/usbdev_trace.h>
@@ -1949,7 +1950,7 @@ static FAR struct usbdev_req_s *lpc43_epallocreq(FAR struct usbdev_ep_s *ep)
 #endif
   usbtrace(TRACE_EPALLOCREQ, ((FAR struct lpc43_ep_s *)ep)->epphy);
 
-  privreq = (FAR struct lpc43_req_s *)malloc(sizeof(struct lpc43_req_s));
+  privreq = (FAR struct lpc43_req_s *)kmalloc(sizeof(struct lpc43_req_s));
   if (!privreq)
     {
       usbtrace(TRACE_DEVERROR(LPC43_TRACEERR_ALLOCFAIL), 0);
@@ -1981,7 +1982,7 @@ static void lpc43_epfreereq(FAR struct usbdev_ep_s *ep, FAR struct usbdev_req_s
 #endif
 
   usbtrace(TRACE_EPFREEREQ, ((FAR struct lpc43_ep_s *)ep)->epphy);
-  free(privreq);
+  kfree(privreq);
 }
 
 /*******************************************************************************
@@ -2000,7 +2001,7 @@ static void *lpc43_epallocbuffer(FAR struct usbdev_ep_s *ep, unsigned bytes)
 #ifdef CONFIG_USBDEV_DMAMEMORY
   return usbdev_dma_alloc(bytes);
 #else
-  return malloc(bytes);
+  return kmalloc(bytes);
 #endif
 }
 #endif
@@ -2021,7 +2022,7 @@ static void lpc43_epfreebuffer(FAR struct usbdev_ep_s *ep, FAR void *buf)
 #ifdef CONFIG_USBDEV_DMAMEMORY
   usbdev_dma_free(buf);
 #else
-  free(buf);
+  kfree(buf);
 #endif
 }
 #endif