qseecom: check register listener syscall result



If smcinvoke based register listener syscall is not supported,
scm driver will return -EIO, then qseecom can change to use
legacy cmd to register listener again.

Change-Id: I232c900abab57e6aee735b92b4eb06d5fc66e66b
Signed-off-by: Zhen Kong <zkong@codeaurora.org>

parent 0c8937f6

drivers/misc/qseecom.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -602,7 +602,8 @@ static int qseecom_scm_call2(uint32_t svc_id, uint32_t tz_cmd_id,
		qseecom.smcinvoke_support = true;
		smc_id = TZ_OS_REGISTER_LISTENER_SMCINVOKE_ID;
		ret = scm_call2(smc_id, &desc);
		if (ret && ret != -EBUSY) {
		if (ret == -EIO) {
		/* smcinvoke is not supported */
		qseecom.smcinvoke_support = false;
		smc_id = TZ_OS_REGISTER_LISTENER_ID;
		ret = scm_call2(smc_id, &desc);