usb: host: 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);

@@
expression x;
@@

-if (x != NULL) {
  \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
  x = NULL;
-}
// </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/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 000ed80..287d595 100644 (file)
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -1976,17 +1976,13 @@ static void fotg210_mem_cleanup(struct fotg210_hcd *fotg210)
        fotg210->dummy = NULL;
 
        /* DMA consistent memory and pools */
-       if (fotg210->qtd_pool)
-               dma_pool_destroy(fotg210->qtd_pool);
+       dma_pool_destroy(fotg210->qtd_pool);
        fotg210->qtd_pool = NULL;
 
-       if (fotg210->qh_pool) {
-               dma_pool_destroy(fotg210->qh_pool);
-               fotg210->qh_pool = NULL;
-       }
+       dma_pool_destroy(fotg210->qh_pool);
+       fotg210->qh_pool = NULL;
 
-       if (fotg210->itd_pool)
-               dma_pool_destroy(fotg210->itd_pool);
+       dma_pool_destroy(fotg210->itd_pool);
        fotg210->itd_pool = NULL;
 
        if (fotg210->periodic)

diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c
index 1fd8718..b247d71 100644 (file)
--- a/drivers/usb/host/fusbh200-hcd.c
+++ b/drivers/usb/host/fusbh200-hcd.c
@@ -1927,17 +1927,13 @@ static void fusbh200_mem_cleanup (struct fusbh200_hcd *fusbh200)
        fusbh200->dummy = NULL;
 
        /* DMA consistent memory and pools */
-       if (fusbh200->qtd_pool)
-               dma_pool_destroy (fusbh200->qtd_pool);
+       dma_pool_destroy(fusbh200->qtd_pool);
        fusbh200->qtd_pool = NULL;
 
-       if (fusbh200->qh_pool) {
-               dma_pool_destroy (fusbh200->qh_pool);
-               fusbh200->qh_pool = NULL;
-       }
+       dma_pool_destroy(fusbh200->qh_pool);
+       fusbh200->qh_pool = NULL;
 
-       if (fusbh200->itd_pool)
-               dma_pool_destroy (fusbh200->itd_pool);
+       dma_pool_destroy(fusbh200->itd_pool);
        fusbh200->itd_pool = NULL;
 
        if (fusbh200->periodic)