This is a note to let you know that I've just added the patch titled firmware: arm_scmi: Add delayed response status check to the 5.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: firmware-arm_scmi-add-delayed-response-status-check.patch and it can be found in the queue-5.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 1babd101559aaa4841f746748421ac0e77954cea Author: Cristian Marussi <cristian.marussi@xxxxxxx> Date: Tue Jun 8 11:30:56 2021 +0100 firmware: arm_scmi: Add delayed response status check [ Upstream commit f1748b1ee1fa0fd1a074504045b530b62f949188 ] 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@xxxxxxx Fixes: 58ecdf03dbb9 ("firmware: arm_scmi: Add support for asynchronous commands and delayed response") Signed-off-by: Cristian Marussi <cristian.marussi@xxxxxxx> Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index 5e8e9337adc7..c2983ed53494 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -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)) - ret = -ETIMEDOUT; + 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;