| Message ID | 20221017195914.1426297-1-u.kleine-koenig@pengutronix.de |
|---|---|
| State | New |
| Headers | show |
| Series | usb: dwc2: platform: Improve error reporting for problems during .remove() | expand |
On 10/17/2022 11:59 PM, Uwe Kleine-König wrote: > Returning an error value in a platform driver's remove callback results in > a generic error message being emitted by the driver core, but otherwise it > doesn't make a difference. The device goes away anyhow. > > For each case where ret is non-zero the driver already emits an error > message, so suppress the generic error message by returning zero > unconditionally. (Side note: The return value handling was unreliable > anyhow as the value returned by dwc2_exit_hibernation() was overwritten > anyhow if hsotg->in_ppd was non-zero.) > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Minas Harutyunyan <hminas@synopsys.com> > --- > drivers/usb/dwc2/platform.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c > index ec4ace0107f5..262c13b6362a 100644 > --- a/drivers/usb/dwc2/platform.c > +++ b/drivers/usb/dwc2/platform.c > @@ -321,7 +321,7 @@ static int dwc2_driver_remove(struct platform_device *dev) > reset_control_assert(hsotg->reset); > reset_control_assert(hsotg->reset_ecc); > > - return ret; > + return 0; > } > > /** > > base-commit: 9abf2313adc1ca1b6180c508c25f22f9395cc780
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index ec4ace0107f5..262c13b6362a 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -321,7 +321,7 @@ static int dwc2_driver_remove(struct platform_device *dev) reset_control_assert(hsotg->reset); reset_control_assert(hsotg->reset_ecc); - return ret; + return 0; } /**
Returning an error value in a platform driver's remove callback results in a generic error message being emitted by the driver core, but otherwise it doesn't make a difference. The device goes away anyhow. For each case where ret is non-zero the driver already emits an error message, so suppress the generic error message by returning zero unconditionally. (Side note: The return value handling was unreliable anyhow as the value returned by dwc2_exit_hibernation() was overwritten anyhow if hsotg->in_ppd was non-zero.) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/usb/dwc2/platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) base-commit: 9abf2313adc1ca1b6180c508c25f22f9395cc780