diff options
-rw-r--r-- | drivers/usb/host/ohci-hcd.c | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index df1af0bcfe99..fc627fd54116 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c | |||
@@ -240,7 +240,7 @@ static int ohci_urb_enqueue ( | |||
240 | if (unlikely(tick_before(frame, next))) { | 240 | if (unlikely(tick_before(frame, next))) { |
241 | 241 | ||
242 | /* USB_ISO_ASAP: Round up to the first available slot */ | 242 | /* USB_ISO_ASAP: Round up to the first available slot */ |
243 | if (urb->transfer_flags & URB_ISO_ASAP) | 243 | if (urb->transfer_flags & URB_ISO_ASAP) { |
244 | frame += (next - frame + ed->interval - 1) & | 244 | frame += (next - frame + ed->interval - 1) & |
245 | -ed->interval; | 245 | -ed->interval; |
246 | 246 | ||
@@ -248,21 +248,25 @@ static int ohci_urb_enqueue ( | |||
248 | * Not ASAP: Use the next slot in the stream. If | 248 | * Not ASAP: Use the next slot in the stream. If |
249 | * the entire URB falls before the threshold, fail. | 249 | * the entire URB falls before the threshold, fail. |
250 | */ | 250 | */ |
251 | else if (tick_before(frame + ed->interval * | 251 | } else { |
252 | if (tick_before(frame + ed->interval * | ||
252 | (urb->number_of_packets - 1), next)) { | 253 | (urb->number_of_packets - 1), next)) { |
253 | retval = -EXDEV; | 254 | retval = -EXDEV; |
254 | usb_hcd_unlink_urb_from_ep(hcd, urb); | 255 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
255 | goto fail; | 256 | goto fail; |
256 | } | 257 | } |
257 | 258 | ||
258 | /* | 259 | /* |
259 | * Some OHCI hardware doesn't handle late TDs | 260 | * Some OHCI hardware doesn't handle late TDs |
260 | * correctly. After retiring them it proceeds to | 261 | * correctly. After retiring them it proceeds |
261 | * the next ED instead of the next TD. Therefore | 262 | * to the next ED instead of the next TD. |
262 | * we have to omit the late TDs entirely. | 263 | * Therefore we have to omit the late TDs |
263 | */ | 264 | * entirely. |
264 | urb_priv->td_cnt = DIV_ROUND_UP(next - frame, | 265 | */ |
265 | ed->interval); | 266 | urb_priv->td_cnt = DIV_ROUND_UP( |
267 | (u16) (next - frame), | ||
268 | ed->interval); | ||
269 | } | ||
266 | } | 270 | } |
267 | urb->start_frame = frame; | 271 | urb->start_frame = frame; |
268 | } | 272 | } |