From c011d558e19aa9b6bb739426f5553bf3e1ad5a69 Mon Sep 17 00:00:00 2001 From: Fabien Parent Date: Wed, 2 Sep 2015 15:50:36 +0200 Subject: [PATCH] greybus: es2: dynamically allocate array for cport <-> ep mapping In order to be able to dynamically determine the number of CPorts supported by the UniPro IP instead of hardcoding the value we need to dynamically allocate the array that is doing the cport-ep mapping. Signed-off-by: Fabien Parent Reviewed-by: Johan Hovold Signed-off-by: Johan Hovold --- drivers/staging/greybus/es2.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c index 4b1f34fe1a60..909ca6acae1c 100644 --- a/drivers/staging/greybus/es2.c +++ b/drivers/staging/greybus/es2.c @@ -108,7 +108,7 @@ struct es1_ap_dev { bool cport_out_urb_cancelled[NUM_CPORT_OUT_URB]; spinlock_t cport_out_urb_lock; - int cport_to_ep[CPORT_COUNT]; + int *cport_to_ep; }; struct cport_to_ep { @@ -443,6 +443,7 @@ static void ap_disconnect(struct usb_interface *interface) usb_set_intfdata(interface, NULL); udev = es1->usb_dev; greybus_remove_hd(es1->hd); + kfree(es1->cport_to_ep); usb_put_dev(udev); } @@ -678,6 +679,13 @@ static int ap_probe(struct usb_interface *interface, endpoint = &udev->ep0.desc; es1->control_endpoint = endpoint->bEndpointAddress; + es1->cport_to_ep = kcalloc(hd->num_cports, sizeof(*es1->cport_to_ep), + GFP_KERNEL); + if (!es1->cport_to_ep) { + retval = -ENOMEM; + goto error; + } + /* find all 3 of our endpoints */ iface_desc = interface->cur_altsetting; for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { -- 2.20.1