Patchwork [v4,1/4] fdc: fix implied seek while there is no medina in drive

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Submitter Pavel Hrdina
Date June 13, 2012, 12:45 p.m.
Message ID <98b829a7de36510287b95bf4dcfd3c545d369a9b.1339591287.git.phrdina@redhat.com>
Download mbox | patch
Permalink /patch/164656/
State New
Headers show

Comments

Pavel Hrdina - June 13, 2012, 12:45 p.m.
The Windows uses 'READ' command at the start of an instalation
without checking the 'dir' register. We have to abort the transfer
with an abnormal termination if there is no media in the drive.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
---
 hw/fdc.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

Patch

diff --git a/hw/fdc.c b/hw/fdc.c
index 30d34e3..be35201 100644
--- a/hw/fdc.c
+++ b/hw/fdc.c
@@ -159,6 +159,10 @@  static int fd_seek(FDrive *drv, uint8_t head, uint8_t track, uint8_t sect,
         drv->sect = sect;
     }
 
+    if (drv->bs == NULL || !bdrv_is_inserted(drv->bs)) {
+        ret = 2;
+    }
+
     return ret;
 }