8f9e91ad03
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
37 lines
1.1 KiB
Diff
37 lines
1.1 KiB
Diff
From 5ec7749803e9f5c47188c5c8bdc883734f2c538d Mon Sep 17 00:00:00 2001
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From: Yuriy Pasichnyk <yurijpasichnyk11@gmail.com>
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Date: Tue, 18 Feb 2025 16:20:31 +0200
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Subject: [PATCH] media: i2c: arducam-pivariety: Fix mutex init and NULL
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pointer
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The mutex used in arducam-pivariety was not properly initialized,
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which could lead to undefined behavior. This also caused a NULL
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pointer dereference under certain conditions.
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This patch ensures the mutex is correctly initialized during probe
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and prevents NULL pointer dereferences.
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Signed-off-by: Yuriy Pasichnyk <yurijpasichnyk11@gmail.com>
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---
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drivers/media/i2c/arducam-pivariety.c | 3 +++
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1 file changed, 3 insertions(+)
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--- a/drivers/media/i2c/arducam-pivariety.c
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+++ b/drivers/media/i2c/arducam-pivariety.c
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@@ -1208,6 +1208,8 @@ static int pivariety_enum_controls(struc
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if (ret)
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return ret;
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+ mutex_init(&pivariety->mutex);
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+
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index = 0;
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while (1) {
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ret = pivariety_write(pivariety, CTRL_INDEX_REG, index);
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@@ -1295,6 +1297,7 @@ static int pivariety_enum_controls(struc
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v4l2_ctrl_handler_setup(ctrl_hdlr);
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return 0;
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err:
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+ mutex_destroy(&pivariety->mutex);
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return -ENODEV;
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}
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