btrfs: add missing device::flush_bio puts

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This fixes potential bio leaks, in several error paths. Unfortunatelly
the device structure freeing is opencoded in many places and I missed
them when introducing the flush_bio.

Most of the time, devices get freed through call_rcu(..., free_device),
so it at least it's not that easy to hit the leak, but it's still
possible through the path that frees stale devices.

Fixes: e0ae999414 ("btrfs: preallocate device flush bio")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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David Sterba 2017-10-30 18:36:08 +01:00

parent 5e9f2ad5b2

commit 3065ae5b85

1 changed files with 10 additions and 0 deletions

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fs/btrfs/volumes.c

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