diff mbox series

i2c: wmt: Fix an error handling path in wmt_i2c_probe()

Message ID 6ed30ecf43a4c8574aa6b9f93be50f3203a42850.1704465414.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State New, archived
Headers show
Series i2c: wmt: Fix an error handling path in wmt_i2c_probe() | expand

Commit Message

Christophe JAILLET Jan. 5, 2024, 2:39 p.m. UTC
wmt_i2c_reset_hardware() calls clk_prepare_enable(). So, should an error
occurs after it, it should be undone by a corresponding
clk_disable_unprepare() call, as already done in the remove function.

Fixes: 560746eb79d3 ("i2c: vt8500: Add support for I2C bus on Wondermedia SoCs")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/i2c/busses/i2c-wmt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Comments

Andi Shyti March 6, 2024, 11:55 a.m. UTC | #1
Hi

On Fri, 05 Jan 2024 15:39:35 +0100, Christophe JAILLET wrote:
> wmt_i2c_reset_hardware() calls clk_prepare_enable(). So, should an error
> occurs after it, it should be undone by a corresponding
> clk_disable_unprepare() call, as already done in the remove function.
> 
> 

Applied to i2c/i2c-host-fixes on

git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git

Thank you,
Andi

Patches applied
===============
[1/1] i2c: wmt: Fix an error handling path in wmt_i2c_probe()
      commit: 78c1dbed365217ee751531e24c18da77795074d9
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-wmt.c b/drivers/i2c/busses/i2c-wmt.c
index ec2a8da134e5..198afee5233c 100644
--- a/drivers/i2c/busses/i2c-wmt.c
+++ b/drivers/i2c/busses/i2c-wmt.c
@@ -378,11 +378,15 @@  static int wmt_i2c_probe(struct platform_device *pdev)
 
 	err = i2c_add_adapter(adap);
 	if (err)
-		return err;
+		goto err_disable_clk;
 
 	platform_set_drvdata(pdev, i2c_dev);
 
 	return 0;
+
+err_disable_clk:
+	clk_disable_unprepare(i2c_dev->clk);
+	return err;
 }
 
 static void wmt_i2c_remove(struct platform_device *pdev)