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[Qemu-devel] [PATCH 2/3] ide: also reset io_buffer_index for writes
From: |
Christoph Hellwig |
Subject: |
[Qemu-devel] [PATCH 2/3] ide: also reset io_buffer_index for writes |
Date: |
Mon, 20 Dec 2010 13:45:58 +0100 |
User-agent: |
Mutt/1.3.28i |
Currenly the code only resets the io_buffer_index field for reads,
but the code seems to expect this for all types of I/O. I guess
we simply don't hit large enough transfers that would require this
often enough.
Signed-off-by: Christoph Hellwig <address@hidden>
Index: qemu/hw/ide/core.c
===================================================================
--- qemu.orig/hw/ide/core.c 2010-12-17 12:03:27.737004194 +0100
+++ qemu/hw/ide/core.c 2010-12-17 12:03:41.485004404 +0100
@@ -521,8 +521,7 @@ void ide_dma_cb(void *opaque, int ret)
/* launch next transfer */
n = s->nsector;
- if (s->is_read)
- s->io_buffer_index = 0;
+ s->io_buffer_index = 0;
s->io_buffer_size = n * 512;
if (s->bus->dma->ops->prepare_buf(s->bus->dma, s->is_read) == 0)
goto eot;