[-next] scsi: aic94xx: Remove unnecessary null check
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Message ID 20190711141539.13892-1-yuehaibing@huawei.com
State Accepted
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Series
  • [-next] scsi: aic94xx: Remove unnecessary null check
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Commit Message

YueHaibing July 11, 2019, 2:15 p.m. UTC
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>
---
 drivers/scsi/aic94xx/aic94xx_init.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

Comments

Martin K. Petersen July 30, 2019, 4:13 p.m. UTC | #1
YueHaibing,

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

Applied to 5.4/scsi-queue. Thanks!

Patch
diff mbox series

diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 261d8e4..f5781e3 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -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;
 }