Commit e59ac747 authored by Geliang Tang's avatar Geliang Tang Committed by Greg Kroah-Hartman

staging: emxx_udc: use list_first_entry_or_null()

Simplify the code with list_first_entry_or_null().
Signed-off-by: default avatarGeliang Tang <geliangtang@163.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e7cfb390
...@@ -1285,11 +1285,7 @@ static void _nbu2ss_restert_transfer(struct nbu2ss_ep *ep) ...@@ -1285,11 +1285,7 @@ static void _nbu2ss_restert_transfer(struct nbu2ss_ep *ep)
bool bflag = FALSE; bool bflag = FALSE;
struct nbu2ss_req *req; struct nbu2ss_req *req;
if (list_empty(&ep->queue)) req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
req = NULL;
else
req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
if (!req) if (!req)
return; return;
...@@ -1784,11 +1780,7 @@ static inline int _nbu2ss_ep0_in_data_stage(struct nbu2ss_udc *udc) ...@@ -1784,11 +1780,7 @@ static inline int _nbu2ss_ep0_in_data_stage(struct nbu2ss_udc *udc)
struct nbu2ss_req *req; struct nbu2ss_req *req;
struct nbu2ss_ep *ep = &udc->ep[0]; struct nbu2ss_ep *ep = &udc->ep[0];
if (list_empty(&ep->queue)) req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
req = NULL;
else
req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
if (!req) if (!req)
req = &udc->ep0_req; req = &udc->ep0_req;
...@@ -1811,11 +1803,7 @@ static inline int _nbu2ss_ep0_out_data_stage(struct nbu2ss_udc *udc) ...@@ -1811,11 +1803,7 @@ static inline int _nbu2ss_ep0_out_data_stage(struct nbu2ss_udc *udc)
struct nbu2ss_req *req; struct nbu2ss_req *req;
struct nbu2ss_ep *ep = &udc->ep[0]; struct nbu2ss_ep *ep = &udc->ep[0];
if (list_empty(&ep->queue)) req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
req = NULL;
else
req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
if (!req) if (!req)
req = &udc->ep0_req; req = &udc->ep0_req;
...@@ -1838,11 +1826,7 @@ static inline int _nbu2ss_ep0_status_stage(struct nbu2ss_udc *udc) ...@@ -1838,11 +1826,7 @@ static inline int _nbu2ss_ep0_status_stage(struct nbu2ss_udc *udc)
struct nbu2ss_req *req; struct nbu2ss_req *req;
struct nbu2ss_ep *ep = &udc->ep[0]; struct nbu2ss_ep *ep = &udc->ep[0];
if (list_empty(&ep->queue)) req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
req = NULL;
else
req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
if (!req) { if (!req) {
req = &udc->ep0_req; req = &udc->ep0_req;
if (req->req.complete) if (req->req.complete)
...@@ -2145,11 +2129,7 @@ static inline void _nbu2ss_epn_int(struct nbu2ss_udc *udc, u32 epnum) ...@@ -2145,11 +2129,7 @@ static inline void _nbu2ss_epn_int(struct nbu2ss_udc *udc, u32 epnum)
/* Interrupt Clear */ /* Interrupt Clear */
_nbu2ss_writel(&udc->p_regs->EP_REGS[num].EP_STATUS, ~(u32)status); _nbu2ss_writel(&udc->p_regs->EP_REGS[num].EP_STATUS, ~(u32)status);
if (list_empty(&ep->queue)) req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue);
req = NULL;
else
req = list_entry(ep->queue.next, struct nbu2ss_req, queue);
if (!req) { if (!req) {
/* pr_warn("=== %s(%d) req == NULL\n", __func__, epnum); */ /* pr_warn("=== %s(%d) req == NULL\n", __func__, epnum); */
return; return;
......
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