[PATCH] media: imx214: Fix the error handling in imx214_probe()

Subsystems: media input infrastructure (v4l/dvb), sony imx214 sensor driver, the rest, v4l2 camera sensor drivers

STALE1612d LANDED

Landed in mainline as 9bc92332cc3f on 2024-04-29.

4 messages, 2 authors, 2022-05-11 · open the first message on its own page

[PATCH] media: imx214: Fix the error handling in imx214_probe()

From: Zheyu Ma <hidden>
Date: 2022-05-10 11:49:23

The driver should disable regulators when fails to probe.

Signed-off-by: Zheyu Ma <redacted>
---
 drivers/media/i2c/imx214.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index 83c1737abeec..61eeaefd4298 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -1076,6 +1076,7 @@ static int imx214_probe(struct i2c_client *client)
 	mutex_destroy(&imx214->mutex);
 	v4l2_ctrl_handler_free(&imx214->ctrls);
 	pm_runtime_disable(imx214->dev);
+	regulator_bulk_disable(IMX214_NUM_SUPPLIES, imx214->supplies);
 
 	return ret;
 }
-- 
2.25.1

Re: [PATCH] media: imx214: Fix the error handling in imx214_probe()

From: Ricardo Ribalda Delgado <ribalda@kernel.org>
Date: 2022-05-11 12:19:36

Hi Zheyu

Do you have seen this issue in a real hardware?  The device enters
idle state unconditionally after power_on during probe.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/media/i2c/imx214.c#n1008




On Tue, May 10, 2022 at 1:49 PM Zheyu Ma [off-list ref] wrote:
quoted hunk
The driver should disable regulators when fails to probe.

Signed-off-by: Zheyu Ma <redacted>
---
 drivers/media/i2c/imx214.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index 83c1737abeec..61eeaefd4298 100644
--- a/drivers/media/i2c/imx214.c
+++ b/drivers/media/i2c/imx214.c
@@ -1076,6 +1076,7 @@ static int imx214_probe(struct i2c_client *client)
        mutex_destroy(&imx214->mutex);
        v4l2_ctrl_handler_free(&imx214->ctrls);
        pm_runtime_disable(imx214->dev);
+       regulator_bulk_disable(IMX214_NUM_SUPPLIES, imx214->supplies);

        return ret;
 }
--
2.25.1

Re: [PATCH] media: imx214: Fix the error handling in imx214_probe()

From: Zheyu Ma <hidden>
Date: 2022-05-11 14:04:32

On Wed, May 11, 2022 at 8:19 PM Ricardo Ribalda Delgado
[off-list ref] wrote:
Hi Zheyu

Do you have seen this issue in a real hardware?  The device enters
idle state unconditionally after power_on during probe.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/media/i2c/imx214.c#n1008
Actually I didn't, I found the "bug" manually.
Thanks for your reminder and sorry for the false alarm.

Zheyu Ma

Re: [PATCH] media: imx214: Fix the error handling in imx214_probe()

From: Ricardo Ribalda Delgado <ribalda@kernel.org>
Date: 2022-05-11 14:09:41

Hi

On Wed, May 11, 2022 at 4:04 PM Zheyu Ma [off-list ref] wrote:
On Wed, May 11, 2022 at 8:19 PM Ricardo Ribalda Delgado
[off-list ref] wrote:
quoted
Hi Zheyu

Do you have seen this issue in a real hardware?  The device enters
idle state unconditionally after power_on during probe.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/media/i2c/imx214.c#n1008
Actually I didn't, I found the "bug" manually.
Thanks for your reminder and sorry for the false alarm.
Thank you for looking at the code :)
Zheyu Ma
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