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scsi: aic94xx: Remove unnecessary null check

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kmem_cache_destroy() can handle NULL pointer correctly, so there is no need
to check NULL pointer before calling kmem_cache_destroy().

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
YueHaibing 2019-07-11 22:15:39 +08:00 committed by Martin K. Petersen
parent 0b3b6fe299
commit b217598890
1 changed files with 3 additions and 6 deletions
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9
drivers/scsi/aic94xx/aic94xx_init.c
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@ -565,8 +565,7 @@ static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
if (asd_ha->hw_prof.scb_ext)
asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
if (asd_ha->hw_prof.ddb_bitmap)
kfree(asd_ha->hw_prof.ddb_bitmap);
kfree(asd_ha->hw_prof.ddb_bitmap);
asd_ha->hw_prof.ddb_bitmap = NULL;
for (i = 0; i < ASD_MAX_PHYS; i++) {
@ -641,12 +640,10 @@ static int asd_create_global_caches(void)
static void asd_destroy_global_caches(void)
{
if (asd_dma_token_cache)
kmem_cache_destroy(asd_dma_token_cache);
kmem_cache_destroy(asd_dma_token_cache);
asd_dma_token_cache = NULL;
if (asd_ascb_cache)
kmem_cache_destroy(asd_ascb_cache);
kmem_cache_destroy(asd_ascb_cache);
asd_ascb_cache = NULL;
}