1 files changed, 4 insertions, 4 deletions
diff --git a/nuttx/arch/arm/src/lpc17xx/lpc17_ohciram.h b/nuttx/arch/arm/src/lpc17xx/lpc17_ohciram.h
index d2fc11248..0e9f81ecb 100755
--- a/nuttx/arch/arm/src/lpc17xx/lpc17_ohciram.h
+++ b/nuttx/arch/arm/src/lpc17xx/lpc17_ohciram.h
@@ -214,10 +214,10 @@
 
 /* Finally, use the remainder of the allocated OHCI for IO buffers */
 
-#define LPC17_IOBUFFERS     ((LPC17_OHCIRAM_END - LPC17_IOFREE_BASE) / CONFIG_USBHOST_IOBUFSIZE)
-
-#if LPC17_IOBUFFERS < 1
-#  warning "No IO buffers allocated"
+#if CONFIG_USBHOST_IOBUFSIZE > 0
+#  define LPC17_IOBUFFERS   ((LPC17_OHCIRAM_END - LPC17_IOFREE_BASE) / CONFIG_USBHOST_IOBUFSIZE)
+#else
+#  define LPC17_IOBUFFERS 0
 #endif
 
 /************************************************************************************