From: Maulik Shah <mkshah@xxxxxxxxxxxxxx> [ Upstream commit 1a53ce9ab4faeb841b33d62d23283dc76c0e7c5a ] rpmh-rsc driver is fairly core to system and should not be removable once its probed. However it allows to unbind driver from sysfs using below command which results into a crash on sc7180. echo 18200000.rsc > /sys/bus/platform/drivers/rpmh/unbind Lets prevent unbind at runtime by setting suppress_bind_attrs flag. Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx> Signed-off-by: Maulik Shah <mkshah@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/1592808805-2437-1-git-send-email-mkshah@xxxxxxxxxxxxxx Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/soc/qcom/rpmh-rsc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c index 0ba1f465db122..8924fcd9f5f59 100644 --- a/drivers/soc/qcom/rpmh-rsc.c +++ b/drivers/soc/qcom/rpmh-rsc.c @@ -715,6 +715,7 @@ static struct platform_driver rpmh_driver = { .driver = { .name = "rpmh", .of_match_table = rpmh_drv_match, + .suppress_bind_attrs = true, }, }; -- 2.25.1
