From 5604e090cba05e9ef881b5ff9ce09c6a2a1a476b Mon Sep 17 00:00:00 2001
From: balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Wed, 1 Oct 2008 01:43:16 +0000
Subject: [PATCH] Check that asynchronous (DMA) submission succeeds (Ian Jackson).
---
hw/ide.c | 10 ++++++++++
1 file changed, 10 insertions(+), 0 deletions(-)
diff --git a/hw/ide.c b/hw/ide.c
index cddc0d5..686d372 100644
--- a/hw/ide.c
+++ b/hw/ide.c
@@ -738,6 +738,14 @@ static inline void ide_abort_command(IDEState *s)
s->error = ABRT_ERR;
}
+static inline void ide_dma_submit_check(IDEState *s,
+ BlockDriverCompletionFunc *dma_cb, BMDMAState *bm)
+{
+ if (bm->aiocb)
+ return;
+ dma_cb(bm, -1);
+}
+
static inline void ide_set_irq(IDEState *s)
{
BMDMAState *bm = s->bmdma;
@@ -954,6 +962,7 @@ static void ide_read_dma_cb(void *opaque, int ret)
#endif
bm->aiocb = bdrv_aio_read(s->bs, sector_num, s->io_buffer, n,
ide_read_dma_cb, bm);
+ ide_dma_submit_check(s, ide_read_dma_cb, bm);
}
static void ide_sector_read_dma(IDEState *s)
@@ -1065,6 +1074,7 @@ static void ide_write_dma_cb(void *opaque, int ret)
#endif
bm->aiocb = bdrv_aio_write(s->bs, sector_num, s->io_buffer, n,
ide_write_dma_cb, bm);
+ ide_dma_submit_check(s, ide_write_dma_cb, bm);
}
static void ide_sector_write_dma(IDEState *s)
--
libgit2 0.23.3