[RFC PATCH v3 05/18] i2c: tegra: Fix the error path in tegra_i2c_runtime_resume
From: Sowjanya Komatineni <skomatineni@nvidia.com>
Date: 2020-07-15 04:19:32
Also in:
linux-i2c, linux-media, linux-tegra, lkml
Subsystem:
i2c subsystem, i2c subsystem host drivers, tegra i2c driver, the rest · Maintainers:
Wolfram Sang, Andi Shyti, Laxman Dewangan, Linus Torvalds
tegra_i2c_runtime_resume does not disable prior enabled clocks properly. This patch fixes it. Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.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 c91307b9..7b93c45 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c@@ -665,18 +665,23 @@ 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; } ret = clk_enable(i2c_dev->div_clk); 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)
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2.7.4