From: Yash Shah <yshah1@visteon.com>
Date: Tue, 8 Dec 2015 10:24:17 +0000 (+0000)
Subject: Staging: rdma:Delete unnecessary NULL check before calling function "kmem_cache_destroy"
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7438370a5150d6090957ab3e461d5b3a31f2181a;p=linux.git

Staging: rdma:Delete unnecessary NULL check before calling function "kmem_cache_destroy"

The kmem_cache_destroy() function tests whether its argument is NULL
and then returns immediately.
Thus the NULL check before calling this function is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Yash Shah <yshah1@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/rdma/ehca/ehca_av.c b/drivers/staging/rdma/ehca/ehca_av.c
index fd7b6d044ec10..94e088c2d989a 100644
--- a/drivers/staging/rdma/ehca/ehca_av.c
+++ b/drivers/staging/rdma/ehca/ehca_av.c
@@ -275,6 +275,5 @@ int ehca_init_av_cache(void)
 
 void ehca_cleanup_av_cache(void)
 {
-	if (av_cache)
-		kmem_cache_destroy(av_cache);
+	kmem_cache_destroy(av_cache);
 }
diff --git a/drivers/staging/rdma/ehca/ehca_cq.c b/drivers/staging/rdma/ehca/ehca_cq.c
index ea1b5c1203b4e..1aa7931fe860f 100644
--- a/drivers/staging/rdma/ehca/ehca_cq.c
+++ b/drivers/staging/rdma/ehca/ehca_cq.c
@@ -393,6 +393,5 @@ int ehca_init_cq_cache(void)
 
 void ehca_cleanup_cq_cache(void)
 {
-	if (cq_cache)
-		kmem_cache_destroy(cq_cache);
+	kmem_cache_destroy(cq_cache);
 }
diff --git a/drivers/staging/rdma/ehca/ehca_main.c b/drivers/staging/rdma/ehca/ehca_main.c
index 8246418cd4e08..860b974e9faab 100644
--- a/drivers/staging/rdma/ehca/ehca_main.c
+++ b/drivers/staging/rdma/ehca/ehca_main.c
@@ -245,8 +245,7 @@ static void ehca_destroy_slab_caches(void)
 	ehca_cleanup_cq_cache();
 	ehca_cleanup_pd_cache();
 #ifdef CONFIG_PPC_64K_PAGES
-	if (ctblk_cache)
-		kmem_cache_destroy(ctblk_cache);
+	kmem_cache_destroy(ctblk_cache);
 #endif
 }
 
diff --git a/drivers/staging/rdma/ehca/ehca_mrmw.c b/drivers/staging/rdma/ehca/ehca_mrmw.c
index f914b30999f8d..553e883a5718e 100644
--- a/drivers/staging/rdma/ehca/ehca_mrmw.c
+++ b/drivers/staging/rdma/ehca/ehca_mrmw.c
@@ -2251,10 +2251,8 @@ int ehca_init_mrmw_cache(void)
 
 void ehca_cleanup_mrmw_cache(void)
 {
-	if (mr_cache)
-		kmem_cache_destroy(mr_cache);
-	if (mw_cache)
-		kmem_cache_destroy(mw_cache);
+	kmem_cache_destroy(mr_cache);
+	kmem_cache_destroy(mw_cache);
 }
 
 static inline int ehca_init_top_bmap(struct ehca_top_bmap *ehca_top_bmap,
diff --git a/drivers/staging/rdma/ehca/ehca_pd.c b/drivers/staging/rdma/ehca/ehca_pd.c
index 351577a6670a5..2a8aae411941f 100644
--- a/drivers/staging/rdma/ehca/ehca_pd.c
+++ b/drivers/staging/rdma/ehca/ehca_pd.c
@@ -119,6 +119,5 @@ int ehca_init_pd_cache(void)
 
 void ehca_cleanup_pd_cache(void)
 {
-	if (pd_cache)
-		kmem_cache_destroy(pd_cache);
+	kmem_cache_destroy(pd_cache);
 }
diff --git a/drivers/staging/rdma/ehca/ehca_qp.c b/drivers/staging/rdma/ehca/ehca_qp.c
index 2e89356c46faf..896c01f810f6f 100644
--- a/drivers/staging/rdma/ehca/ehca_qp.c
+++ b/drivers/staging/rdma/ehca/ehca_qp.c
@@ -2252,6 +2252,5 @@ int ehca_init_qp_cache(void)
 
 void ehca_cleanup_qp_cache(void)
 {
-	if (qp_cache)
-		kmem_cache_destroy(qp_cache);
+	kmem_cache_destroy(qp_cache);
 }