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afs: Fix leak of ungot volume

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Fix afs_lookup_volume_rcu() so that it doesn't leak a dying volume if
afs_try_get_volume() fails.

Fixes: 32222f0978 ("afs: Apply server breaks to mmap'd files in the call processor")
Closes: https://sashiko.dev/#/patchset/20260609081738.770127-1-dhowells%40redhat.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260622090856.2746629-17-dhowells@redhat.com
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Deepakkumar Karn <dkarn@redhat.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
David Howells 2026-06-22 10:08:50 +01:00 committed by Christian Brauner
parent 794a011103
commit d672c276f6
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1 changed files with 1 additions and 0 deletions
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fs/afs/callback.c
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@ -134,6 +134,7 @@ static struct afs_volume *afs_lookup_volume_rcu(struct afs_cell *cell,
if (volume && afs_try_get_volume(volume, afs_volume_trace_get_callback))
break;
volume = NULL;
}
return volume;