diff options
| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2014-04-28 20:43:35 +0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-04-30 23:46:56 +0400 |
| commit | ec4a340789be16831ae96be5f7552238a7a6e903 (patch) | |
| tree | 5571ed3e41b1afaaf2633dc135e62351ed162aa8 /drivers/block/null_blk.c | |
| parent | babea49ebe010d0a533b5db20fa63c327402a71c (diff) | |
| download | linux-ec4a340789be16831ae96be5f7552238a7a6e903.tar.xz | |
drbd: use list_first_entry_or_null in first_peer_device/first_connection
If there are no peer_devices or connections, I'd rather have NULL
than some "arbitrary" address pretending to point to a struct.
Helps to avoid hard to debug symptoms, in case we ever try to use
and dereference a drbd_connection or drbd_peer_device
where we in fact don't have any connection at all.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/null_blk.c')
0 files changed, 0 insertions, 0 deletions