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misc: lis3lv02d_i2c: Add missing setting of the reg_ctrl callback 

[ Upstream commit b1b9f7a494400c0c39f8cd83de3aaa6111c55087 ]

The lis3lv02d_i2c driver was missing a line to set the lis3_dev's
reg_ctrl callback.

lis3_reg_ctrl(on) is called from the init callback, but due to
the missing reg_ctrl callback the regulators where never turned off
again leading to the following oops/backtrace when detaching the driver:

[   82.313527] ------------[ cut here ]------------
[   82.313546] WARNING: CPU: 1 PID: 1724 at drivers/regulator/core.c:2396 _regulator_put+0x219/0x230
...
[   82.313695] RIP: 0010:_regulator_put+0x219/0x230
...
[   82.314767] Call Trace:
[   82.314770]  <TASK>
[   82.314772]  ? _regulator_put+0x219/0x230
[   82.314777]  ? __warn+0x81/0x170
[   82.314784]  ? _regulator_put+0x219/0x230
[   82.314791]  ? report_bug+0x18d/0x1c0
[   82.314801]  ? handle_bug+0x3c/0x80
[   82.314806]  ? exc_invalid_op+0x13/0x60
[   82.314812]  ? asm_exc_invalid_op+0x16/0x20
[   82.314845]  ? _regulator_put+0x219/0x230
[   82.314857]  regulator_bulk_free+0x39/0x60
[   82.314865]  i2c_device_remove+0x22/0xb0

Add the missing setting of the callback so that the regulators
properly get turned off again when not used.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20231224183402.95640-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hans de Goede 2023-12-24 19:34:02 +01:00 committed by Greg Kroah-Hartman
parent 91f1977487
commit 2c1164ad92
1 changed files with 1 additions and 0 deletions
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drivers/misc/lis3lv02d/lis3lv02d_i2c.c
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@ -151,6 +151,7 @@ static int lis3lv02d_i2c_probe(struct i2c_client *client,
lis3_dev.init = lis3_i2c_init; lis3_dev.init = lis3_i2c_init;
lis3_dev.read = lis3_i2c_read; lis3_dev.read = lis3_i2c_read;
lis3_dev.write = lis3_i2c_write; lis3_dev.write = lis3_i2c_write;
lis3_dev.reg_ctrl = lis3_reg_ctrl;
lis3_dev.irq = client->irq; lis3_dev.irq = client->irq;
lis3_dev.ac = lis3lv02d_axis_map; lis3_dev.ac = lis3lv02d_axis_map;
lis3_dev.pm_dev = &client->dev; lis3_dev.pm_dev = &client->dev;