From: ths <ths>
Date: Sun, 10 Dec 2006 23:07:39 +0000 (+0000)
Subject: Fix sector size overflow, by Herbert Xu.
X-Git-Tag: release_0_9_1~1658
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=de5b378f9dc63357eb4026aa1e7719f043276f0f;p=qemu-xen-4.5-testing.git

Fix sector size overflow, by Herbert Xu.
---

diff --git a/hw/fdc.c b/hw/fdc.c
index 930c0e21b..073dafa4c 100644
--- a/hw/fdc.c
+++ b/hw/fdc.c
@@ -888,7 +888,7 @@ static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
         fdctrl->data_len = fdctrl->fifo[8];
     } else {
 	int tmp;
-        fdctrl->data_len = 128 << fdctrl->fifo[5];
+        fdctrl->data_len = 128 << (fdctrl->fifo[5] > 7 ? 7 : fdctrl->fifo[5]);
         tmp = (cur_drv->last_sect - ks + 1);
         if (fdctrl->fifo[0] & 0x80)
             tmp += cur_drv->last_sect;