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-rw-r--r--sys/vm/uma_core.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/sys/vm/uma_core.c b/sys/vm/uma_core.c
index a6bb05e..47daeee 100644
--- a/sys/vm/uma_core.c
+++ b/sys/vm/uma_core.c
@@ -513,10 +513,12 @@ cache_drain(uma_zone_t zone, int destroy)
bucket_drain(zone, cache->uc_allocbucket);
bucket_drain(zone, cache->uc_freebucket);
if (destroy) {
- uma_zfree_internal(bucketzone, cache->uc_allocbucket,
- NULL, 0);
- uma_zfree_internal(bucketzone, cache->uc_freebucket,
- NULL, 0);
+ if (cache->uc_allocbucket != NULL)
+ uma_zfree_internal(bucketzone,
+ cache->uc_allocbucket, NULL, 0);
+ if (cache->uc_freebucket != NULL)
+ uma_zfree_internal(bucketzone,
+ cache->uc_freebucket, NULL, 0);
cache->uc_allocbucket = cache->uc_freebucket = NULL;
}
}
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