diff mbox series

[RFC,v1,04/18] i2c: tegra: Fix the error path in tegra_i2c_runtime_resume

Message ID 1591768960-31648-5-git-send-email-skomatineni@nvidia.com
State New
Headers show
Series [RFC,v1,01/18] dt-bindings: i2c: tegra: Document Tegra210 VI I2C clocks and power-domains | expand

Commit Message

Sowjanya Komatineni June 10, 2020, 6:02 a.m. UTC 
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 | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 3be1018..dba38a5 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 +676,18 @@  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:
+	if (i2c_dev->slow_clk)
+		clk_disable(i2c_dev->slow_clk);
+disable_fast_clk:
+	if (!i2c_dev->hw->has_single_clk_source)
+		clk_disable(i2c_dev->fast_clk);
+	return ret;
 }
 
 static int __maybe_unused tegra_i2c_runtime_suspend(struct device *dev)