d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

In detach(), call bus_generic_detach() before deleting the iicbus child.

Browse Source 
This gives the bus and its children the chance to return EBUSY to abort
the detach if they're in the middle of doing some IO.
This commit is contained in:
ian 2019-06-16 16:02:50 +00:00
parent ddf6ac67ba
commit 99654c675c
1 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
sys/arm/ti/ti_i2c.c
View File

@ -735,8 +735,6 @@ ti_i2c_deactivate(device_t dev)
sc->sc_irq_h = NULL;
}
bus_generic_detach(sc->sc_dev);
/* Unmap the I2C controller registers. */
if (sc->sc_mem_res != NULL) {
bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->sc_mem_res);
@ -925,12 +923,19 @@ ti_i2c_detach(device_t dev)
int rv;
sc = device_get_softc(dev);
ti_i2c_deactivate(dev);
TI_I2C_LOCK_DESTROY(sc);
if (sc->sc_iicbus &&
if ((rv = bus_generic_detach(dev)) != 0) {
device_printf(dev, "cannot detach child devices\n");
return (rv);
}
if (sc->sc_iicbus &&
(rv = device_delete_child(dev, sc->sc_iicbus)) != 0)
return (rv);
ti_i2c_deactivate(dev);
TI_I2C_LOCK_DESTROY(sc);
return (0);
}