can: peak_usb: pcan_usb_get_device_id(): read value only in case of success
In case of error, reading value from response argument is useless. Link: https://lore.kernel.org/r/20210625130931.27438-2-s.grosjean@peak-system.com Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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@ -384,7 +384,8 @@ static int pcan_usb_get_device_id(struct peak_usb_device *dev, u32 *device_id)
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if (err)
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if (err)
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netdev_err(dev->netdev, "getting device id failure: %d\n", err);
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netdev_err(dev->netdev, "getting device id failure: %d\n", err);
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*device_id = args[0];
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else
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*device_id = args[0];
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return err;
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return err;
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}
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}
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