[PATCH] SCSI-aic94xx: Delete unnecessary checks before the function call "kmem_cache_destroy"

From: SF Markus Elfring
Date: Tue Nov 17 2015 - 02:22:17 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 17 Nov 2015 08:14:52 +0100

The kmem_cache_destroy() function tests whether its argument is NULL
and then returns immediately. Thus the test around the calls is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/aic94xx/aic94xx_init.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 662b232..ab93049 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -660,12 +660,9 @@ Err:

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;
}

--
2.6.2

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