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Fix the case where no root hub object while host controller object exist in ACPI namespace.

Browse Source 
Also you can disable ACPI support for USB by setting
debug.acpi.disabled="usb"

PR:	238711
This commit is contained in:
Takanori Watanabe 2019-06-20 23:52:33 +00:00
parent 38b06f8ac4
commit a809abd44a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=349251
1 changed files with 11 additions and 6 deletions
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17
sys/dev/usb/usb_hub_acpi.c
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@ -243,13 +243,14 @@ acpi_uhub_parse_pld(device_t dev, unsigned int port, ACPI_HANDLE ah)
}
ACPI_STATUS
acpi_uhub_find_rh(device_t dev, ACPI_HANDLE * ah){
acpi_uhub_find_rh(device_t dev, ACPI_HANDLE * ah)
{
device_t grand;
ACPI_HANDLE gah;
*ah = NULL;
grand = device_get_parent(device_get_parent(dev));
if ((gah = acpi_get_handle(grand)) == NULL) {
*ah = NULL;
return AE_ERROR;
}
return AcpiWalkNamespace(ACPI_TYPE_DEVICE, gah, 1,
@ -257,7 +258,8 @@ acpi_uhub_find_rh(device_t dev, ACPI_HANDLE * ah){
}
ACPI_STATUS
acpi_usb_hub_port_probe_cb(ACPI_HANDLE ah, UINT32 lv, void *ctx, void **rv){
acpi_usb_hub_port_probe_cb(ACPI_HANDLE ah, UINT32 lv, void *ctx, void **rv)
{
ACPI_DEVICE_INFO *devinfo;
device_t dev = ctx;
struct acpi_uhub_softc *sc = device_get_softc(dev);
@ -281,7 +283,8 @@ acpi_usb_hub_port_probe_cb(ACPI_HANDLE ah, UINT32 lv, void *ctx, void **rv){
}
ACPI_STATUS
acpi_usb_hub_port_probe(device_t dev, ACPI_HANDLE ah){
acpi_usb_hub_port_probe(device_t dev, ACPI_HANDLE ah)
{
return AcpiWalkNamespace(ACPI_TYPE_DEVICE,
ah, 1,
acpi_usb_hub_port_probe_cb,
@ -293,6 +296,9 @@ acpi_uhub_root_probe(device_t dev)
ACPI_HANDLE ah;
ACPI_STATUS status;
if(acpi_disabled("usb")) {
return ENXIO;
}
status = acpi_uhub_find_rh(dev, &ah);
if (ACPI_SUCCESS(status)
&& ah != NULL
@ -308,7 +314,7 @@ acpi_uhub_probe(device_t dev)
{
ACPI_HANDLE ah = acpi_get_handle(dev);
if (ah && (uhub_probe(dev) <= 0)) {
if (!acpi_disabled("usb") && ah && (uhub_probe(dev) <= 0)) {
/*success prior than non - acpi hub*/
return (BUS_PROBE_DEFAULT + 1);
}
@ -335,7 +341,6 @@ acpi_uhub_root_attach(device_t dev)
sc->nports = uh->nports;
sc->porthandle = malloc(sizeof(ACPI_HANDLE) * uh->nports,
M_USBDEV, M_WAITOK | M_ZERO);
acpi_uhub_find_rh(dev, &devhandle);
acpi_usb_hub_port_probe(dev, devhandle);
return 0;