| Message ID | 20220113101430.12869-3-u.kleine-koenig@pengutronix.de |
|---|---|
| State | New |
| Headers | show |
| Series | mfd: twlx030: i2c remove callback cleanup | expand |
On Thu, 13 Jan 2022, Uwe Kleine-König wrote: > If twl4030_exit_irq() returns an error, the effect is that the caller > (twl_remove()) forwards the error to the i2c core without unregistering > its dummy slave devices. This only makes the i2c core emit another > error message and then it still removes the device. > > In this situation it doesn't make sense to abort the remove cleanup and not > unregister the slave devices. So do that. Then return value is actually > unused and twl4030_exit_irq() can better be changed to return no value at > all. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > --- > drivers/mfd/twl-core.c | 6 +----- > drivers/mfd/twl-core.h | 2 +- > drivers/mfd/twl4030-irq.c | 7 ++----- > 3 files changed, 4 insertions(+), 11 deletions(-) Applied, thanks.
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index d4194faf1cc3..bd6659cf3bc0 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -1036,16 +1036,12 @@ static void clocks_init(struct device *dev, static int twl_remove(struct i2c_client *client) { unsigned i, num_slaves; - int status = 0; if (twl_class_is_4030()) - status = twl4030_exit_irq(); + twl4030_exit_irq(); else twl6030_exit_irq(); - if (status < 0) - return status; - num_slaves = twl_get_num_slaves(); for (i = 0; i < num_slaves; i++) { struct twl_client *twl = &twl_priv->twl_modules[i]; diff --git a/drivers/mfd/twl-core.h b/drivers/mfd/twl-core.h index 1b916d2e8752..b4bf6a233bd0 100644 --- a/drivers/mfd/twl-core.h +++ b/drivers/mfd/twl-core.h @@ -5,7 +5,7 @@ extern int twl6030_init_irq(struct device *dev, int irq_num); extern void twl6030_exit_irq(void); extern int twl4030_init_irq(struct device *dev, int irq_num); -extern int twl4030_exit_irq(void); +extern void twl4030_exit_irq(void); extern int twl4030_init_chip_irq(const char *chip); #endif /* __TWL_CORE_H__ */ diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index ab417438d1fa..4f576f0160a9 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -753,14 +753,11 @@ int twl4030_init_irq(struct device *dev, int irq_num) return status; } -int twl4030_exit_irq(void) +void twl4030_exit_irq(void) { /* FIXME undo twl_init_irq() */ - if (twl4030_irq_base) { + if (twl4030_irq_base) pr_err("twl4030: can't yet clean up IRQs?\n"); - return -ENOSYS; - } - return 0; } int twl4030_init_chip_irq(const char *chip)
If twl4030_exit_irq() returns an error, the effect is that the caller (twl_remove()) forwards the error to the i2c core without unregistering its dummy slave devices. This only makes the i2c core emit another error message and then it still removes the device. In this situation it doesn't make sense to abort the remove cleanup and not unregister the slave devices. So do that. Then return value is actually unused and twl4030_exit_irq() can better be changed to return no value at all. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/mfd/twl-core.c | 6 +----- drivers/mfd/twl-core.h | 2 +- drivers/mfd/twl4030-irq.c | 7 ++----- 3 files changed, 4 insertions(+), 11 deletions(-)