Commit f1748b1e authored by Cristian Marussi's avatar Cristian Marussi Committed by Sudeep Holla
Browse files

firmware: arm_scmi: Add delayed response status check 

A successfully received delayed response could anyway report a failure at
the protocol layer in the message status field.

Add a check also for this error condition.

Link: https://lore.kernel.org/r/20210608103056.3388-1-cristian.marussi@arm.com


Fixes: 58ecdf03 ("firmware: arm_scmi: Add support for asynchronous commands and delayed response")
Signed-off-by: default avatarCristian Marussi <cristian.marussi@arm.com>
Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
parent 507cd4d2

drivers/firmware/arm_scmi/driver.c

+6 −2
Original line number Diff line number Diff line
@@ -517,8 +517,12 @@ static int do_xfer_with_response(const struct scmi_protocol_handle *ph, 
	xfer->async_done = &async_response;



	ret = do_xfer(ph, xfer);

	if (!ret && !wait_for_completion_timeout(xfer->async_done, timeout))

	if (!ret) {

		if (!wait_for_completion_timeout(xfer->async_done, timeout))

			ret = -ETIMEDOUT;

		else if (xfer->hdr.status)

			ret = scmi_to_linux_errno(xfer->hdr.status);

	}



	xfer->async_done = NULL;

	return ret;