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dm integrity: don't check null pointer before kvfree and vfree

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The functions kfree, vfree and kvfree do nothing if we pass a NULL
pointer to them.  So we don't need to test the pointer for NULL.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mikulas Patocka 2019-04-29 14:57:17 +02:00 committed by Mike Snitzer
parent 30bba430dd
commit 97abfde17a
1 changed files with 2 additions and 4 deletions
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6
drivers/md/dm-integrity.c
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@ -3548,10 +3548,8 @@ static void dm_integrity_dtr(struct dm_target *ti)
destroy_workqueue(ic->writer_wq);
if (ic->recalc_wq)
destroy_workqueue(ic->recalc_wq);
if (ic->recalc_buffer)
vfree(ic->recalc_buffer);
if (ic->recalc_tags)
kvfree(ic->recalc_tags);
vfree(ic->recalc_buffer);
kvfree(ic->recalc_tags);
if (ic->bufio)
dm_bufio_client_destroy(ic->bufio);
mempool_exit(&ic->journal_io_mempool);