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greybus: es2: separate stopping and deallocating urbs 

Separate stopping and deallocating our in-urbs.

This will facilitate implementing proper host-device life-time management.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2015-11-04 18:55:16 +01:00 committed by Greg Kroah-Hartman
parent 8dfd3fe564
commit f6624ca77c
1 changed files with 15 additions and 1 deletions
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16
drivers/staging/greybus/es2.c
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@ -238,6 +238,18 @@ err_kill_urbs:
return ret;
}
static void es2_cport_in_disable(struct es2_ap_dev *es2,
struct es2_cport_in *cport_in)
{
struct urb *urb;
int i;
for (i = 0; i < NUM_CPORT_IN_URB; ++i) {
urb = cport_in->urb[i];
usb_kill_urb(urb);
}
}
static struct urb *next_free_urb(struct es2_ap_dev *es2, gfp_t gfp_mask)
{
struct urb *urb = NULL;
@ -547,6 +559,9 @@ static void ap_disconnect(struct usb_interface *interface)
if (!es2)
return;
for (i = 0; i < NUM_BULKS; ++i)
es2_cport_in_disable(es2, &es2->cport_in[i]);
usb_log_disable(es2);
/* Tear down everything! */
@ -569,7 +584,6 @@ static void ap_disconnect(struct usb_interface *interface)
if (!urb)
break;
usb_kill_urb(urb);
usb_free_urb(urb);
kfree(cport_in->buffer[i]);
cport_in->buffer[i] = NULL;