[PATCH 5.14 631/849] firmware: qcom_scm: Fix error retval in __qcom_scm_is_call_available()

[Greg Kroah-Hartman]

From: Guru Das Srinagesh <quic_gurus@xxxxxxxxxxx>

[ Upstream commit 38212b2a8a6fc4c3a6fa99d7445b833bedc9a67c ]

Since __qcom_scm_is_call_available() returns bool, have it return false
instead of -EINVAL if an invalid SMC convention is detected.

This fixes the Smatch static checker warning:

	drivers/firmware/qcom_scm.c:255 __qcom_scm_is_call_available()
	warn: signedness bug returning '(-22)'

Fixes: 9d11af8b06a8 ("firmware: qcom_scm: Make __qcom_scm_is_call_available() return bool")
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Guru Das Srinagesh <quic_gurus@xxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/1633982414-28347-1-git-send-email-quic_gurus@xxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/firmware/qcom_scm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index 47ea2bd42b100..0aa0fe86ca8c7 100644
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -252,7 +252,7 @@ static bool __qcom_scm_is_call_available(struct device *dev, u32 svc_id,
 		break;
 	default:
 		pr_err("Unknown SMC convention being used\n");
-		return -EINVAL;
+		return false;
 	}
 
 	ret = qcom_scm_call(dev, &desc, &res);
-- 
2.33.0