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Commit 564e6be5 authored by Tarun Gupta's avatar Tarun Gupta Committed by Gerrit - the friendly Code Review server
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USB: rmnet: Handle case when response queue is empty 



When there is no packet available in response queue on device side
and host requests for GET_ENCAPSULATED response on control endpoint,
frmnet_setup() API returns as -EOPNOTSUPP. This results into controller
driver stalling EP0 OUT endpoint which host side driver may not
expected. Hence to avoid this stalling of EP0 OUT endpoint returns
zero instead of -EOPNOTSUPP from frment_setup() API.

CRs-Fixed: 782966
Change-Id: I82fb30a7113ad61212d47835318701badadb289a
Signed-off-by: default avatarMayank Rana <mrana@codeaurora.org>
Signed-off-by: default avatarTarun Gupta <tarung@codeaurora.org>
parent 75d530af

drivers/usb/gadget/function/f_rmnet.c

+1 −0
Original line number Diff line number Diff line
@@ -1078,6 +1078,7 @@ frmnet_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) 
					" req%02x.%02x v%04x i%04x l%d\n",

					ctrl->bRequestType, ctrl->bRequest,

					w_value, w_index, w_length);

				ret = 0;

				spin_unlock(&dev->lock);

				goto invalid;

			}