This is a note to let you know that I've just added the patch titled
firmware: qcom_scm: Fix error retval in __qcom_scm_is_call_available()
to the 5.10-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-qcom_scm-fix-error-retval-in-__qcom_scm_is_.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 63a06894c93f714c3717627932bbdb1833bec51f
Author: Guru Das Srinagesh <quic_gurus@xxxxxxxxxxx>
Date: Mon Oct 11 13:00:14 2021 -0700
firmware: qcom_scm: Fix error retval in __qcom_scm_is_call_available()
[ 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>
diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index c5b20bdc08e9d..e10a99860ca4b 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);
