diff options
author | Clark Williams <williams@redhat.com> | 2012-04-04 10:52:26 -0500 |
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committer | Clark Williams <williams@redhat.com> | 2012-04-04 10:52:26 -0500 |
commit | 2d93eaf2d4ace5853a74a4b0596f601aa62cb840 (patch) | |
tree | b0a2e2083c1749c4e3b8ae23db7bb13a7ca9aafe /drivers/usb/gadget/fsl_udc_core.c | |
parent | 003133585fc61d7bd36d3a097d7fde62e64a9550 (diff) | |
parent | 23d8c3f8f494c8516c9b4c05529e118e6a485956 (diff) |
Merge commit 'v3.2.14' into rt-3.2.14-rt23v3.2.14-rt23
Diffstat (limited to 'drivers/usb/gadget/fsl_udc_core.c')
-rw-r--r-- | drivers/usb/gadget/fsl_udc_core.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index dd28ef3def71..8e3e509f3a53 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -768,7 +768,7 @@ static void fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) * @is_last: return flag if it is the last dTD of the request * return: pointer to the built dTD */ static struct ep_td_struct *fsl_build_dtd(struct fsl_req *req, unsigned *length, - dma_addr_t *dma, int *is_last) + dma_addr_t *dma, int *is_last, gfp_t gfp_flags) { u32 swap_temp; struct ep_td_struct *dtd; @@ -777,7 +777,7 @@ static struct ep_td_struct *fsl_build_dtd(struct fsl_req *req, unsigned *length, *length = min(req->req.length - req->req.actual, (unsigned)EP_MAX_LENGTH_TRANSFER); - dtd = dma_pool_alloc(udc_controller->td_pool, GFP_KERNEL, dma); + dtd = dma_pool_alloc(udc_controller->td_pool, gfp_flags, dma); if (dtd == NULL) return dtd; @@ -827,7 +827,7 @@ static struct ep_td_struct *fsl_build_dtd(struct fsl_req *req, unsigned *length, } /* Generate dtd chain for a request */ -static int fsl_req_to_dtd(struct fsl_req *req) +static int fsl_req_to_dtd(struct fsl_req *req, gfp_t gfp_flags) { unsigned count; int is_last; @@ -836,7 +836,7 @@ static int fsl_req_to_dtd(struct fsl_req *req) dma_addr_t dma; do { - dtd = fsl_build_dtd(req, &count, &dma, &is_last); + dtd = fsl_build_dtd(req, &count, &dma, &is_last, gfp_flags); if (dtd == NULL) return -ENOMEM; @@ -910,13 +910,11 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) req->req.actual = 0; req->dtd_count = 0; - spin_lock_irqsave(&udc->lock, flags); - /* build dtds and push them to device queue */ - if (!fsl_req_to_dtd(req)) { + if (!fsl_req_to_dtd(req, gfp_flags)) { + spin_lock_irqsave(&udc->lock, flags); fsl_queue_td(ep, req); } else { - spin_unlock_irqrestore(&udc->lock, flags); return -ENOMEM; } @@ -1295,7 +1293,7 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) ep_is_in(ep) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); req->mapped = 1; - if (fsl_req_to_dtd(req) == 0) + if (fsl_req_to_dtd(req, GFP_ATOMIC) == 0) fsl_queue_td(ep, req); else return -ENOMEM; @@ -1379,7 +1377,7 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, req->mapped = 1; /* prime the data phase */ - if ((fsl_req_to_dtd(req) == 0)) + if ((fsl_req_to_dtd(req, GFP_ATOMIC) == 0)) fsl_queue_td(ep, req); else /* no mem */ goto stall; |