diff options
Diffstat (limited to 'drivers/usb/host/r8a66597-hcd.c')
| -rw-r--r-- | drivers/usb/host/r8a66597-hcd.c | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 0ceec123ddf..50a3e2d6a6c 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -35,7 +35,9 @@ #include <linux/usb.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/mm.h> #include <linux/irq.h> +#include <asm/cacheflush.h> #include "../core/hcd.h" #include "r8a66597.h" @@ -820,6 +822,26 @@ static void enable_r8a66597_pipe(struct r8a66597 *r8a66597, struct urb *urb, enable_r8a66597_pipe_dma(r8a66597, dev, pipe, urb); } +static void r8a66597_urb_done(struct r8a66597 *r8a66597, struct urb *urb, + int status) +__releases(r8a66597->lock) +__acquires(r8a66597->lock) +{ + if (usb_pipein(urb->pipe) && usb_pipetype(urb->pipe) != PIPE_CONTROL) { + void *ptr; + + for (ptr = urb->transfer_buffer; + ptr < urb->transfer_buffer + urb->transfer_buffer_length; + ptr += PAGE_SIZE) + flush_dcache_page(virt_to_page(ptr)); + } + + usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb); + spin_unlock(&r8a66597->lock); + usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, status); + spin_lock(&r8a66597->lock); +} + /* this function must be called with interrupt disabled */ static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) { @@ -838,15 +860,9 @@ static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address) list_del(&td->queue); kfree(td); - if (urb) { - usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), - urb); + if (urb) + r8a66597_urb_done(r8a66597, urb, -ENODEV); - spin_unlock(&r8a66597->lock); - usb_hcd_giveback_urb(r8a66597_to_hcd(r8a66597), urb, - -ENODEV); - spin_lock(&r8a66597->lock); - } break; } } @@ -1283,10 +1299,7 @@ __releases(r8a66597->lock) __acquires(r8a66597->lock) if (usb_pipeisoc(urb->pipe)) urb->start_frame = r8a66597_get_frame(hcd); - usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb); - spin_unlock(&r8a66597->lock); - usb_hcd_giveback_urb(hcd, urb, status); - spin_lock(&r8a66597->lock); + r8a66597_urb_done(r8a66597, urb, status); } if (restart) { |