usb: typec: intel_pmc_mux: Put fwnode in error case during ->probe()

commit 1a85b350a7741776a406005b943e3dec02c424ed upstream.

device_get_next_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.

Fixes: 6701adfa9693 ("usb: typec: driver for Intel PMC mux control")
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210607205007.71458-1-andy.shevchenko@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c
index 17896bd87fc3f43e6fa755dfd055a7d7cb742444..f6eaa7e30d541f1a09492a1007d2a1b50779c18e 100644 (file)
--- a/drivers/usb/typec/mux/intel_pmc_mux.c
+++ b/drivers/usb/typec/mux/intel_pmc_mux.c
@@ -623,8 +623,10 @@ static int pmc_usb_probe(struct platform_device *pdev)
                        break;
 
                ret = pmc_usb_register_port(pmc, i, fwnode);
-               if (ret)
+               if (ret) {
+                       fwnode_handle_put(fwnode);
                        goto err_remove_ports;
+               }
        }
 
        platform_set_drvdata(pdev, pmc);