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usb: typec: Return size of buffer if pd_set operation succeeds
commit53f5094fdf
upstream. The attribute writing should return the number of bytes used from the buffer on success. Fixes:a7cff92f06
("usb: typec: USB Power Delivery helpers for ports and partners") Cc: stable@vger.kernel.org Signed-off-by: Kyle Tso <kyletso@google.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20240319074309.3306579-1-kyletso@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 6 additions and 1 deletions
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@ -1310,6 +1310,7 @@ static ssize_t select_usb_power_delivery_store(struct device *dev,
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{
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struct typec_port *port = to_typec_port(dev);
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struct usb_power_delivery *pd;
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int ret;
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if (!port->ops || !port->ops->pd_set)
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return -EOPNOTSUPP;
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@ -1318,7 +1319,11 @@ static ssize_t select_usb_power_delivery_store(struct device *dev,
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if (!pd)
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return -EINVAL;
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return port->ops->pd_set(port, pd);
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ret = port->ops->pd_set(port, pd);
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if (ret)
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return ret;
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return size;
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}
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static ssize_t select_usb_power_delivery_show(struct device *dev,
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