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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>
This commit is contained in:
Julia Lawall 2015-09-13 14:15:32 +02:00 committed by Greg Kroah-Hartman
parent 395f5409ca
commit a4c1f0c2a9
2 changed files with 8 additions and 16 deletions
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12
drivers/usb/host/fotg210-hcd.c
View File

@ -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)

12
drivers/usb/host/fusbh200-hcd.c
View File

@ -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)