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soc: rockchip: power-domain: use pm_genpd_remove in error cleanup

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The newly introduced pm_genpd_remove reverts the initialization done
by pm_genpd_init and is necessary in the error path of the rockchip
power-domain driver.

Without it the driver will in the error case cleanup the devm-allocated
structures including the elements referenced in the gpd_list thus making
deactivation of unused domains (and probably later genpd accesses as
well) fail by accessing invalid pointers.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Heiko Stuebner 2016-09-16 00:14:38 +02:00
parent e4c8cd82d5
commit 79d12b7a7f
1 changed files with 10 additions and 1 deletions
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11
drivers/soc/rockchip/pm_domains.c
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@ -479,7 +479,16 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
static void rockchip_pm_remove_one_domain(struct rockchip_pm_domain *pd)
{
int i;
int i, ret;
/*
* We're in the error cleanup already, so we only complain,
* but won't emit another error on top of the original one.
*/
ret = pm_genpd_remove(&pd->genpd);
if (ret < 0)
dev_err(pd->pmu->dev, "failed to remove domain '%s' : %d - state may be inconsistent\n",
pd->genpd.name, ret);
for (i = 0; i < pd->num_clks; i++) {
clk_unprepare(pd->clks[i]);