diff options
| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2021-11-17 14:51:00 +0300 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2021-11-19 13:40:02 +0300 |
| commit | fa58e465542e48b6ab2336350dae76d1cf83ceb1 (patch) | |
| tree | a57e91ce2a9c318e592606cd8b8f7ca8af846754 /drivers/clk/renesas | |
| parent | 33748744f15a110a233b6ae0380f476006e770f0 (diff) | |
| download | linux-fa58e465542e48b6ab2336350dae76d1cf83ceb1.tar.xz | |
clk: renesas: cpg-mssr: Check return value of pm_genpd_init()
Make sure we check the return value of pm_genpd_init() which might fail.
Also add a devres action to remove the power-domain in-case the probe
callback fails further down in the code flow.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20211117115101.28281-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Diffstat (limited to 'drivers/clk/renesas')
| -rw-r--r-- | drivers/clk/renesas/renesas-cpg-mssr.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index 21f762aa2131..a04d9573f59f 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -552,6 +552,11 @@ void cpg_mssr_detach_dev(struct generic_pm_domain *unused, struct device *dev) pm_clk_destroy(dev); } +static void cpg_mssr_genpd_remove(void *data) +{ + pm_genpd_remove(data); +} + static int __init cpg_mssr_add_clk_domain(struct device *dev, const unsigned int *core_pm_clks, unsigned int num_core_pm_clks) @@ -560,6 +565,7 @@ static int __init cpg_mssr_add_clk_domain(struct device *dev, struct generic_pm_domain *genpd; struct cpg_mssr_clk_domain *pd; size_t pm_size = num_core_pm_clks * sizeof(core_pm_clks[0]); + int ret; pd = devm_kzalloc(dev, sizeof(*pd) + pm_size, GFP_KERNEL); if (!pd) @@ -574,7 +580,14 @@ static int __init cpg_mssr_add_clk_domain(struct device *dev, GENPD_FLAG_ACTIVE_WAKEUP; genpd->attach_dev = cpg_mssr_attach_dev; genpd->detach_dev = cpg_mssr_detach_dev; - pm_genpd_init(genpd, &pm_domain_always_on_gov, false); + ret = pm_genpd_init(genpd, &pm_domain_always_on_gov, false); + if (ret) + return ret; + + ret = devm_add_action_or_reset(dev, cpg_mssr_genpd_remove, genpd); + if (ret) + return ret; + cpg_mssr_clk_domain = pd; of_genpd_add_provider_simple(np, genpd); |