[PATCH 2/5] cdc-acm: avoid interface_to_usbdev call

[Ladislav Michl]

Pointer to usb_device is already stored in acm structure.

Signed-off-by: Ladislav Michl <la...@linux-mips.org>
---
 drivers/usb/class/cdc-acm.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index b511289..8e2d82c 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1089,19 +1089,17 @@ static void acm_write_buffers_free(struct acm *acm)
 {
        int i;
        struct acm_wb *wb;
-       struct usb_device *usb_dev = interface_to_usbdev(acm->control);
 
        for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++)
-               usb_free_coherent(usb_dev, acm->writesize, wb->buf, wb->dmah);
+               usb_free_coherent(acm->dev, acm->writesize, wb->buf, wb->dmah);
 }
 
 static void acm_read_buffers_free(struct acm *acm)
 {
-       struct usb_device *usb_dev = interface_to_usbdev(acm->control);
        int i;
 
        for (i = 0; i < acm->rx_buflimit; i++)
-               usb_free_coherent(usb_dev, acm->readsize,
+               usb_free_coherent(acm->dev, acm->readsize,
                          acm->read_buffers[i].base, acm->read_buffers[i].dma);
 }
 
@@ -1535,7 +1533,6 @@ static void stop_data_traffic(struct acm *acm)
 static void acm_disconnect(struct usb_interface *intf)
 {
        struct acm *acm = usb_get_intfdata(intf);
-       struct usb_device *usb_dev = interface_to_usbdev(intf);
        struct tty_struct *tty;
        int i;
 
@@ -1573,7 +1570,7 @@ static void acm_disconnect(struct usb_interface *intf)
        for (i = 0; i < acm->rx_buflimit; i++)
                usb_free_urb(acm->read_urbs[i]);
        acm_write_buffers_free(acm);
-       usb_free_coherent(usb_dev, acm->ctrlsize, acm->ctrl_buffer, 
acm->ctrl_dma);
+       usb_free_coherent(acm->dev, acm->ctrlsize, acm->ctrl_buffer, 
acm->ctrl_dma);
        acm_read_buffers_free(acm);
 
        if (!acm->combined_interfaces)
-- 
2.1.4

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