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Subject[RFC PATCH v2 04/18] i2c: tegra: Fix the error path in tegra_i2c_runtime_resume
Date
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 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)
--
2.7.4
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