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block: Allow error return in BlockDevOps.change_media_cb()

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Some devices allow a media change between read-only and read-write
media. They need to adapt the permissions in their .change_media_cb()
implementation, which can fail. So add an Error parameter to the
function.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>
This commit is contained in:
Kevin Wolf 2017-01-24 14:21:41 +01:00
parent c62d32f503
commit 39829a01ae
8 changed files with 36 additions and 15 deletions
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2
hw/sd/sd.c
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@ -458,7 +458,7 @@ static bool sd_get_readonly(SDState *sd)
return sd->wp_switch;
}
static void sd_cardchange(void *opaque, bool load)
static void sd_cardchange(void *opaque, bool load, Error **errp)
{
SDState *sd = opaque;
DeviceState *dev = DEVICE(sd);