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| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2016-08-05 08:30:02 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2016-08-08 09:45:03 +1000 |
| commit | 16275edb342342625cd7e7ac2048436474465b50 (patch) | |
| tree | d63342e1280abd7f87def93b0b3cf3519bdac42a | |
| parent | 3c0c47e3464f3c54bd3f1cc6d4da2cbf7465e295 (diff) | |
| download | qemu-16275edb342342625cd7e7ac2048436474465b50.zip qemu-16275edb342342625cd7e7ac2048436474465b50.tar.gz qemu-16275edb342342625cd7e7ac2048436474465b50.tar.bz2 | |
macio: set res_count value to 0 after non-block ATAPI DMA transfers
res_count should be set to the number of outstanding bytes after a DBDMA
request. Unfortunately this wasn't being set to zero by the non-block
transfer codepath meaning drivers that checked the descriptor result for
such requests (e.g reading the CDROM TOC) would assume from a non-zero result
that the transfer had failed.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| -rw-r--r-- | hw/ide/macio.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/ide/macio.c b/hw/ide/macio.c index 5a326af..76f97c2 100644 --- a/hw/ide/macio.c +++ b/hw/ide/macio.c @@ -273,6 +273,7 @@ static void pmac_ide_atapi_transfer_cb(void *opaque, int ret) s->io_buffer_size = MIN(s->io_buffer_size, io->len); dma_memory_write(&address_space_memory, io->addr, s->io_buffer, s->io_buffer_size); + io->len = 0; ide_atapi_cmd_ok(s); m->dma_active = false; goto done; |