[PATCH 5.15 362/476] HID: i2c-hid-of: fix NULL-deref on failed power up

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5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <johan+linaro@xxxxxxxxxx>

commit 00aab7dcb2267f2aef59447602f34501efe1a07f upstream.

A while back the I2C HID implementation was split in an ACPI and OF
part, but the new OF driver never initialises the client pointer which
is dereferenced on power-up failures.

Fixes: b33752c30023 ("HID: i2c-hid: Reorganize so ACPI and OF are separate modules")
Cc: stable@xxxxxxxxxxxxxxx      # 5.12
Cc: Douglas Anderson <dianders@xxxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/hid/i2c-hid/i2c-hid-of.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/hid/i2c-hid/i2c-hid-of.c
+++ b/drivers/hid/i2c-hid/i2c-hid-of.c
@@ -80,6 +80,7 @@ static int i2c_hid_of_probe(struct i2c_c
 	if (!ihid_of)
 		return -ENOMEM;
 
+	ihid_of->client = client;
 	ihid_of->ops.power_up = i2c_hid_of_power_up;
 	ihid_of->ops.power_down = i2c_hid_of_power_down;
 






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