[PATCH AUTOSEL 5.7 02/60] soc: qcom: rpmh-rsc: Set suppress_bind_attrs flag
From: Sasha Levin <sashal@kernel.org>
Date: 2020-08-10 19:10:42
Also in:
linux-arm-msm, lkml
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Linus Torvalds
From: Maulik Shah <redacted> [ 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 <redacted> Signed-off-by: Maulik Shah <redacted> Link: https://lore.kernel.org/r/1592808805-2437-1-git-send-email-mkshah@codeaurora.org (local) Signed-off-by: Bjorn Andersson <redacted> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 3d2104286ee91..a9ccdf2e43b78 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, }, };
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2.25.1