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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart from
emitting a warning) and this typically results in resource leaks. To improve
here there is a quest to make the remove callback return void. In the first
step of this quest all drivers are converted to .remove_new() which already
returns void. Eventually after all drivers are converted, .remove_new() is
renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Link: https://lore.kernel.org/r/20230517230239.187727-87-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It is odd to call devm_add_action_or_reset() before calling the function
that should be undone.
Either, the "_or_reset" part should be omitted, or the action should be
recorded after the resources have been allocated.
Switch the order of devm_add_action_or_reset() and usb_role_switch_get().
Fixes: 9a1bf58ccd ("usb: misc: eud: Add driver support for Embedded USB Debugger(EUD)")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/362908699275ecec078381b42d87c817c6965fc6.1648979948.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for control peripheral of EUD (Embedded USB Debugger) to
listen to events such as USB attach/detach, pet EUD to indicate software
is functional.Reusing the platform device kobj, sysfs entry 'enable' is
created to enable or disable EUD.
To enable the eud the following needs to be done
echo 1 > /sys/bus/platform/.../enable
To disable eud, following is the command
echo 0 > /sys/bus/platform/.../enable
Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Link: https://lore.kernel.org/r/0ac5c2b2c8e4ce4f4f342a08b48cfc61aeaf7ee8.1644339918.git.quic_schowdhu@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
