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xen: Use devclass_find to lookup devclasses in identify.

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While here, use driver->name instead of hardcoding the xenpv and
xen_et strings both for devclass_find() and BUS_ADD_CHILD().

Reviewed by:	Elliott Mitchell <ehem+freebsd@m5p.com>, imp, royger
Differential Revision:	https://reviews.freebsd.org/D35001
This commit is contained in:
John Baldwin 2022-04-25 11:55:30 -07:00
parent ccaec73d0b
commit 651a887f4e
2 changed files with 4 additions and 4 deletions
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4
sys/dev/xen/bus/xenpv.c
View file

@ -77,14 +77,14 @@ xenpv_identify(driver_t *driver, device_t parent)
return;
/* Make sure there's only one xenpv device. */
if (devclass_get_device(xenpv_devclass, 0))
if (devclass_get_device(devclass_find(driver->name), 0))
return;
/*
* The xenpv bus should be the last to attach in order
* to properly detect if an ISA bus has already been added.
*/
if (BUS_ADD_CHILD(parent, UINT_MAX, "xenpv", 0) == NULL)
if (BUS_ADD_CHILD(parent, UINT_MAX, driver->name, 0) == NULL)
panic("Unable to attach xenpv bus.");
}

4
sys/dev/xen/timer/timer.c
View file

@ -109,10 +109,10 @@ xentimer_identify(driver_t *driver, device_t parent)
return;
/* Handle all Xen PV timers in one device instance. */
if (devclass_get_device(xentimer_devclass, 0))
if (devclass_get_device(devclass_find(driver->name), 0))
return;
BUS_ADD_CHILD(parent, 0, "xen_et", 0);
BUS_ADD_CHILD(parent, 0, driver->name, 0);
}
static int