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Date: Wed, 17 Jun 2020 07:52:17 +0300 From: Dmitry Osipenko <digetx@...il.com> To: Sowjanya Komatineni <skomatineni@...dia.com>, thierry.reding@...il.com, jonathanh@...dia.com, frankc@...dia.com, hverkuil@...all.nl, sakari.ailus@....fi, robh+dt@...nel.org, helen.koike@...labora.com Cc: sboyd@...nel.org, gregkh@...uxfoundation.org, linux-media@...r.kernel.org, devicetree@...r.kernel.org, linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org Subject: Re: [RFC PATCH v2 04/18] i2c: tegra: Fix the error path in tegra_i2c_runtime_resume 17.06.2020 04:41, Sowjanya Komatineni пишет: > tegra_i2c_runtime_resume does not disable prior enabled clocks > properly. > > This patch fixes it. > > Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com> > --- > drivers/i2c/busses/i2c-tegra.c | 11 ++++++++--- > 1 file changed, 8 insertions(+), 3 deletions(-) > > diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c > index 3be1018..1b459ca 100644 > --- a/drivers/i2c/busses/i2c-tegra.c > +++ b/drivers/i2c/busses/i2c-tegra.c > @@ -668,7 +668,7 @@ static int __maybe_unused tegra_i2c_runtime_resume(struct device *dev) > ret = clk_enable(i2c_dev->slow_clk); > if (ret < 0) { > dev_err(dev, "failed to enable slow clock: %d\n", ret); > - return ret; > + goto disable_fast_clk; > } > } > > @@ -676,11 +676,16 @@ static int __maybe_unused tegra_i2c_runtime_resume(struct device *dev) > if (ret < 0) { > dev_err(i2c_dev->dev, > "Enabling div clk failed, err %d\n", ret); > - clk_disable(i2c_dev->fast_clk); > - return ret; > + goto disable_slow_clk; > } > > return 0; > + > +disable_slow_clk: > + clk_disable(i2c_dev->slow_clk); > +disable_fast_clk: > + clk_disable(i2c_dev->fast_clk); > + return ret; > } > > static int __maybe_unused tegra_i2c_runtime_suspend(struct device *dev) > This looks good to me. Could you please add an additional patch to remove all the other conditions of the clk enable/disable? The current code was already inconsistent because in most cases there are conditions, but not in all cases.
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