[Qemu-devel] [PATCH 2/4] ide: fix cmd_read_pio when nsectors > 1

[John Snow <jsnow@redhat.com>]

Similar to the cmd_write_pio fix, update the nsector count and
ide sector before we invoke ide_transfer_start.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Message-id: 1426811056-2202-3-git-send-email-jsnow@redhat.com
---
 hw/ide/core.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/hw/ide/core.c b/hw/ide/core.c
index 0e9da64..a895fd8 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -587,14 +587,12 @@ static void ide_sector_read_cb(void *opaque, int ret)
         n = s->req_nb_sectors;
     }
 
+    ide_set_sector(s, ide_get_sector(s) + n);
+    s->nsector -= n;
     /* Allow the guest to read the io_buffer */
     ide_transfer_start(s, s->io_buffer, n * BDRV_SECTOR_SIZE, ide_sector_read);
-
-    ide_set_irq(s->bus);
-
-    ide_set_sector(s, ide_get_sector(s) + n);
-    s->nsector -= n;
     s->io_buffer_offset += 512 * n;
+    ide_set_irq(s->bus);
 }
 
 static void ide_sector_read(IDEState *s)
-- 
2.1.0