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34 lines
982 B
Diff
34 lines
982 B
Diff
From 45f7008ef38f9ac70ee4800d7d12bf23a9e2d31e Mon Sep 17 00:00:00 2001
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From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
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Date: Mon, 11 Sep 2023 12:17:25 +0300
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Subject: [PATCH] media: i2c: imx477: Fix locking in imx477_init_controls()
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The driver does not lock the imx477 mutex when calling
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imx477_set_framing_limits(), leading to:
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WARNING: CPU: 3 PID: 426 at drivers/media/v4l2-core/v4l2-ctrls-api.c:934 __v4l2_ctrl_modify_range+0x1a0/0x210 [
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videodev]
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Fix this by taking the lock.
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Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
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---
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drivers/media/i2c/imx477.c | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/drivers/media/i2c/imx477.c
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+++ b/drivers/media/i2c/imx477.c
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@@ -2069,9 +2069,13 @@ static int imx477_init_controls(struct i
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imx477->sd.ctrl_handler = ctrl_hdlr;
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+ mutex_lock(&imx477->mutex);
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+
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/* Setup exposure and frame/line length limits. */
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imx477_set_framing_limits(imx477);
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+ mutex_unlock(&imx477->mutex);
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+
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return 0;
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error:
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