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usb: renesas_usbhs: cleanup with list_first_entry_or_null() 

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

Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Masahiro Yamada 2016-09-19 01:03:15 +09:00 committed by Felipe Balbi
parent 785c91f8ae
commit 31faf878bd
1 changed files with 1 additions and 4 deletions
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5
drivers/usb/renesas_usbhs/fifo.c
View File

@ -100,10 +100,7 @@ static void __usbhsf_pkt_del(struct usbhs_pkt *pkt)
static struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe)
{
if (list_empty(&pipe->list))
return NULL;
return list_first_entry(&pipe->list, struct usbhs_pkt, node);
return list_first_entry_or_null(&pipe->list, struct usbhs_pkt, node);
}
static void usbhsf_fifo_clear(struct usbhs_pipe *pipe,