Commit f7199cf4 authored by Sudeep Holla's avatar Sudeep Holla
Browse files

firmware: arm_scmi: Fix return error code in smc_send_message 

SMCCC can return NOT_SUPPORTED(-1). Map it to appropriate Linux error
codes namely -EOPNOTSUPP.

Link: https://lore.kernel.org/r/20200417103232.6896-1-sudeep.holla@arm.com


Reported-and-Tested-by: default avatar: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: default avatarEtienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: default avatarPeng Fan <peng.fan@nxp.com>
Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
parent c5bceb98

drivers/firmware/arm_scmi/smc.c

+4 −1
Original line number Diff line number Diff line
@@ -114,7 +114,10 @@ static int smc_send_message(struct scmi_chan_info *cinfo, 


	mutex_unlock(&scmi_info->shmem_lock);



	return res.a0;

	/* Only SMCCC_RET_NOT_SUPPORTED is valid error code */

	if (res.a0)

		return -EOPNOTSUPP;

	return 0;

}



static void smc_fetch_response(struct scmi_chan_info *cinfo,