do-while for mr. stack!

diff --git a/usb/host/ohci.c b/usb/host/ohci.c
index a852be2642f0aafe3c3e537f9a15a9198bcfebd3..d696294a04de06bad11a3a5b151cde5a2a61daf3 100644 (file)
--- a/usb/host/ohci.c
+++ b/usb/host/ohci.c
@@ -261,10 +261,10 @@ void hcdi_fire()
        write32(OHCI0_HC_COMMAND_STATUS, OHCI_CLF);
 
        /* poll until edhead->headp is null */
-       sync_before_read(edhead, sizeof(struct endpoint_descriptor));
-       while(LE(edhead->headp)&~0xf) {
+       do {
                sync_before_read(edhead, sizeof(struct endpoint_descriptor));
-       }
+               printf("edhead->headp: 0x%08X\n", LE(edhead->headp));
+       } while(LE(edhead->headp)&~0xf);
 
        struct general_td *n = phys_to_virt(read32(OHCI0_HC_DONE_HEAD) & ~1);
        printf("hc_done_head: 0x%08X\n", read32(OHCI0_HC_DONE_HEAD));