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[media] em28xx: rename function em28xx_uninit_isoc to em28xx_uninit_usb_xfer 

This function will be used to uninitialize USB bulk transfers, too.
Also rename the local variable isoc_bufs to usb_bufs.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Frank Schaefer 2012-11-08 14:11:40 -03:00 committed by Mauro Carvalho Chehab
parent 836e93bf6a
commit afb177e065
4 changed files with 26 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/media/usb/em28xx/em28xx-cards.c
View File

@ -3394,7 +3394,7 @@ static void em28xx_usb_disconnect(struct usb_interface *interface)
video_device_node_name(dev->vdev));
dev->state |= DEV_MISCONFIGURED;
em28xx_uninit_isoc(dev, dev->mode);
em28xx_uninit_usb_xfer(dev, dev->mode);
dev->state |= DEV_DISCONNECTED;
} else {
dev->state |= DEV_DISCONNECTED;
@ -3402,7 +3402,7 @@ static void em28xx_usb_disconnect(struct usb_interface *interface)
}
/* free DVB isoc buffers */
em28xx_uninit_isoc(dev, EM28XX_DIGITAL_MODE);
em28xx_uninit_usb_xfer(dev, EM28XX_DIGITAL_MODE);
mutex_unlock(&dev->lock);

43
drivers/media/usb/em28xx/em28xx-core.c
View File

@ -962,49 +962,50 @@ static void em28xx_irq_callback(struct urb *urb)
/*
* Stop and Deallocate URBs
*/
void em28xx_uninit_isoc(struct em28xx *dev, enum em28xx_mode mode)
void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode)
{
struct urb *urb;
struct em28xx_usb_bufs *isoc_bufs;
struct em28xx_usb_bufs *usb_bufs;
int i;
em28xx_isocdbg("em28xx: called em28xx_uninit_isoc in mode %d\n", mode);
em28xx_isocdbg("em28xx: called em28xx_uninit_usb_xfer in mode %d\n",
mode);
if (mode == EM28XX_DIGITAL_MODE)
isoc_bufs = &dev->usb_ctl.digital_bufs;
usb_bufs = &dev->usb_ctl.digital_bufs;
else
isoc_bufs = &dev->usb_ctl.analog_bufs;
usb_bufs = &dev->usb_ctl.analog_bufs;
for (i = 0; i < isoc_bufs->num_bufs; i++) {
urb = isoc_bufs->urb[i];
for (i = 0; i < usb_bufs->num_bufs; i++) {
urb = usb_bufs->urb[i];
if (urb) {
if (!irqs_disabled())
usb_kill_urb(urb);
else
usb_unlink_urb(urb);
if (isoc_bufs->transfer_buffer[i]) {
if (usb_bufs->transfer_buffer[i]) {
usb_free_coherent(dev->udev,
urb->transfer_buffer_length,
isoc_bufs->transfer_buffer[i],
usb_bufs->transfer_buffer[i],
urb->transfer_dma);
}
usb_free_urb(urb);
isoc_bufs->urb[i] = NULL;
usb_bufs->urb[i] = NULL;
}
isoc_bufs->transfer_buffer[i] = NULL;
usb_bufs->transfer_buffer[i] = NULL;
}
kfree(isoc_bufs->urb);
kfree(isoc_bufs->transfer_buffer);
kfree(usb_bufs->urb);
kfree(usb_bufs->transfer_buffer);
isoc_bufs->urb = NULL;
isoc_bufs->transfer_buffer = NULL;
isoc_bufs->num_bufs = 0;
usb_bufs->urb = NULL;
usb_bufs->transfer_buffer = NULL;
usb_bufs->num_bufs = 0;
em28xx_capture_start(dev, 0);
}
EXPORT_SYMBOL_GPL(em28xx_uninit_isoc);
EXPORT_SYMBOL_GPL(em28xx_uninit_usb_xfer);
/*
* Stop URBs
@ -1051,7 +1052,7 @@ int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode,
isoc_bufs = &dev->usb_ctl.analog_bufs;
/* De-allocates all pending stuff */
em28xx_uninit_isoc(dev, mode);
em28xx_uninit_usb_xfer(dev, mode);
isoc_bufs->num_bufs = num_bufs;
@ -1081,7 +1082,7 @@ int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode,
urb = usb_alloc_urb(isoc_bufs->num_packets, GFP_KERNEL);
if (!urb) {
em28xx_err("cannot alloc usb_ctl.urb %i\n", i);
em28xx_uninit_isoc(dev, mode);
em28xx_uninit_usb_xfer(dev, mode);
return -ENOMEM;
}
isoc_bufs->urb[i] = urb;
@ -1093,7 +1094,7 @@ int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode,
" buffer %i%s\n",
sb_size, i,
in_interrupt() ? " while in int" : "");
em28xx_uninit_isoc(dev, mode);
em28xx_uninit_usb_xfer(dev, mode);
return -ENOMEM;
}
memset(isoc_bufs->transfer_buffer[i], 0, sb_size);
@ -1171,7 +1172,7 @@ int em28xx_init_isoc(struct em28xx *dev, enum em28xx_mode mode,
if (rc) {
em28xx_err("submit of urb %i failed (error=%i)\n", i,
rc);
em28xx_uninit_isoc(dev, mode);
em28xx_uninit_usb_xfer(dev, mode);
return rc;
}
}

2
drivers/media/usb/em28xx/em28xx-video.c
View File

@ -2272,7 +2272,7 @@ static int em28xx_v4l2_close(struct file *filp)
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
/* do this before setting alternate! */
em28xx_uninit_isoc(dev, EM28XX_ANALOG_MODE);
em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
em28xx_set_mode(dev, EM28XX_SUSPEND);
/* set alternate 0 */

2
drivers/media/usb/em28xx/em28xx.h
View File

@ -667,7 +667,7 @@ int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode,
int em28xx_init_isoc(struct em28xx *dev, enum em28xx_mode mode,
int num_packets, int num_bufs, int max_pkt_size,
int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
void em28xx_uninit_isoc(struct em28xx *dev, enum em28xx_mode mode);
void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
void em28xx_stop_urbs(struct em28xx *dev);
int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);