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block: Make device model's references to BlockBackend strong 

Doesn't make a difference just yet, but it's the right thing to do.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
master
Markus Armbruster 2014-10-07 13:59:26 +02:00 committed by Kevin Wolf
parent a7f53e26a6
commit 84ebe3755f
1 changed files with 2 additions and 0 deletions
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2
block/block-backend.c
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@ -257,6 +257,7 @@ int blk_attach_dev(BlockBackend *blk, void *dev)
if (blk->dev) {
return -EBUSY;
}
blk_ref(blk);
blk->dev = dev;
bdrv_iostatus_reset(blk->bs);
@ -290,6 +291,7 @@ void blk_detach_dev(BlockBackend *blk, void *dev)
blk->dev_opaque = NULL;
bdrv_set_guest_block_size(blk->bs, 512);
qemu_coroutine_adjust_pool_size(-COROUTINE_POOL_RESERVATION);
blk_unref(blk);
}
/*