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dmaengine: cleanup with list_first_entry_or_null()

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The combo of list_empty() check and return list_first_entry()
can be replaced with list_first_entry_or_null().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Masahiro Yamada
2016-09-13 03:08:17 +09:00
committed by Vinod Koul
parent aa570be6de
commit 360af35b08
4 changed files with 13 additions and 57 deletions
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6
drivers/dma/virt-dma.h
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@@ -123,10 +123,8 @@ static inline void vchan_cyclic_callback(struct virt_dma_desc *vd)
*/
static inline struct virt_dma_desc *vchan_next_desc(struct virt_dma_chan *vc)
{
if (list_empty(&vc->desc_issued))
return NULL;
return list_first_entry(&vc->desc_issued, struct virt_dma_desc, node);
return list_first_entry_or_null(&vc->desc_issued,
struct virt_dma_desc, node);
}
/**