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NeilBrown authored
As the recent bug in md_alloc showed, having a single exit path for unlocking and putting is a good idea. So restructure md_alloc to have a single mutex_unlock and mddev_put, and use gotos where necessary. Found-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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