diff options
| author | Geliang Tang <geliangtang@163.com> | 2015-11-16 21:54:46 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-12-21 18:32:52 -0800 |
| commit | e59ac747946693b1356d576f843ce8ac1e283927 (patch) | |
| tree | 1127226be49fe5f7d9ab150166fb96d1bd7eb384 /drivers/staging/emxx_udc | |
| parent | e7cfb3907d1c88cea8977fa267149cb2297fb07e (diff) | |
staging: emxx_udc: use list_first_entry_or_null()
Simplify the code with list_first_entry_or_null().
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/emxx_udc')
| -rw-r--r-- | drivers/staging/emxx_udc/emxx_udc.c | 30 |
1 files changed, 5 insertions, 25 deletions
diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c index c168845cbb91..beb9411658ba 100644 --- a/drivers/staging/emxx_udc/emxx_udc.c +++ b/drivers/staging/emxx_udc/emxx_udc.c @@ -1285,11 +1285,7 @@ static void _nbu2ss_restert_transfer(struct nbu2ss_ep *ep) bool bflag = FALSE; struct nbu2ss_req *req; - if (list_empty(&ep->queue)) - req = NULL; - else - req = list_entry(ep->queue.next, struct nbu2ss_req, queue); - + req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue); if (!req) return; @@ -1784,11 +1780,7 @@ static inline int _nbu2ss_ep0_in_data_stage(struct nbu2ss_udc *udc) struct nbu2ss_req *req; struct nbu2ss_ep *ep = &udc->ep[0]; - if (list_empty(&ep->queue)) - req = NULL; - else - req = list_entry(ep->queue.next, struct nbu2ss_req, queue); - + req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue); if (!req) req = &udc->ep0_req; @@ -1811,11 +1803,7 @@ static inline int _nbu2ss_ep0_out_data_stage(struct nbu2ss_udc *udc) struct nbu2ss_req *req; struct nbu2ss_ep *ep = &udc->ep[0]; - if (list_empty(&ep->queue)) - req = NULL; - else - req = list_entry(ep->queue.next, struct nbu2ss_req, queue); - + req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue); if (!req) req = &udc->ep0_req; @@ -1838,11 +1826,7 @@ static inline int _nbu2ss_ep0_status_stage(struct nbu2ss_udc *udc) struct nbu2ss_req *req; struct nbu2ss_ep *ep = &udc->ep[0]; - if (list_empty(&ep->queue)) - req = NULL; - else - req = list_entry(ep->queue.next, struct nbu2ss_req, queue); - + req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue); if (!req) { req = &udc->ep0_req; if (req->req.complete) @@ -2145,11 +2129,7 @@ static inline void _nbu2ss_epn_int(struct nbu2ss_udc *udc, u32 epnum) /* Interrupt Clear */ _nbu2ss_writel(&udc->p_regs->EP_REGS[num].EP_STATUS, ~(u32)status); - if (list_empty(&ep->queue)) - req = NULL; - else - req = list_entry(ep->queue.next, struct nbu2ss_req, queue); - + req = list_first_entry_or_null(&ep->queue, struct nbu2ss_req, queue); if (!req) { /* pr_warn("=== %s(%d) req == NULL\n", __func__, epnum); */ return; |