X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/f8d7cde0d035f087f39c8076061bd8ef608e14f4..b2be2bbd665328f4ec3dc14d7d84fdbac4c58e11:/embedded/libs4c/usb/lpcusb/lpcusb.c

diff --git a/embedded/libs4c/usb/lpcusb/lpcusb.c b/embedded/libs4c/usb/lpcusb/lpcusb.c
index 1cf130d..09b1eac 100644
--- a/embedded/libs4c/usb/lpcusb/lpcusb.c
+++ b/embedded/libs4c/usb/lpcusb/lpcusb.c
@@ -150,11 +150,10 @@ int lpc_usb_read_endpoint( unsigned int ep_num, void *ptr, int size)
   while (USBCtrl & USBCtrl_RD_EN) {
     dwData = USBRxData;
     if (p != NULL) {
-      for (i = 0; i < 4; i++) {
-	if (size-- != 0) {
-	  *p = dwData & 0xFF;
-          p++;
-	}
+      for (i = 0; (i < 4) && size; i++) {
+	size--;
+	*p = dwData & 0xFF;
+	p++;
 	dwData >>= 8;
       }
     }