| Message ID | 20211117115101.28281-2-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
| Series | clk: renesas: trivial fixes | expand |
On Wed, Nov 17, 2021 at 12:51 PM Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > 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. > > Fixes: ef3c613ccd68a ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC") > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
On Thu, Nov 18, 2021 at 4:25 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote: > On Wed, Nov 17, 2021 at 12:51 PM Lad Prabhakar > <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > > 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. > > > > Fixes: ef3c613ccd68a ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC") > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > > Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> i.e. will queue in renesas-clk-for-v5.17. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c index f9dfee14a33e..b0cffc8b22c0 100644 --- a/drivers/clk/renesas/rzg2l-cpg.c +++ b/drivers/clk/renesas/rzg2l-cpg.c @@ -851,10 +851,16 @@ static void rzg2l_cpg_detach_dev(struct generic_pm_domain *unused, struct device pm_clk_destroy(dev); } +static void rzg2l_cpg_genpd_remove(void *data) +{ + pm_genpd_remove(data); +} + static int __init rzg2l_cpg_add_clk_domain(struct device *dev) { struct device_node *np = dev->of_node; struct generic_pm_domain *genpd; + int ret; genpd = devm_kzalloc(dev, sizeof(*genpd), GFP_KERNEL); if (!genpd) @@ -865,7 +871,13 @@ static int __init rzg2l_cpg_add_clk_domain(struct device *dev) GENPD_FLAG_ACTIVE_WAKEUP; genpd->attach_dev = rzg2l_cpg_attach_dev; genpd->detach_dev = rzg2l_cpg_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, rzg2l_cpg_genpd_remove, genpd); + if (ret) + return ret; of_genpd_add_provider_simple(np, genpd); return 0;
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. Fixes: ef3c613ccd68a ("clk: renesas: Add CPG core wrapper for RZ/G2L SoC") Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> --- drivers/clk/renesas/rzg2l-cpg.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)