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[Qemu-devel] [PATCH v4 1/4] fdc: fix implied seek while there is no medi
From: |
Pavel Hrdina |
Subject: |
[Qemu-devel] [PATCH v4 1/4] fdc: fix implied seek while there is no medina in drive |
Date: |
Wed, 13 Jun 2012 14:45:57 +0200 |
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 <address@hidden>
---
hw/fdc.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
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;
}
--
1.7.7.6