From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Sun, 13 Sep 2015 12:15:11 +0000 (+0200)
Subject: whci: drop null test before destroy functions
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=03bce87ce99ae6611ad8c03d509b2da59d86183d;p=deliverable%2Flinux.git

whci: drop null test before destroy functions

Remove unneeded NULL test.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ expression x; @@
-if (x != NULL)
  \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/whci/init.c b/drivers/usb/host/whci/init.c
index d3e13b640d4b..e36372393bb1 100644
--- a/drivers/usb/host/whci/init.c
+++ b/drivers/usb/host/whci/init.c
@@ -175,8 +175,7 @@ void whc_clean_up(struct whc *whc)
 	pzl_clean_up(whc);
 	asl_clean_up(whc);
 
-	if (whc->qset_pool)
-		dma_pool_destroy(whc->qset_pool);
+	dma_pool_destroy(whc->qset_pool);
 
 	len   = resource_size(&whc->umc->resource);
 	if (whc->base)