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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-10 13:17:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-10 13:17:21 -0800 |
| commit | 5a96c0bbff8690afb3a2fcfc80208cd6590f6e88 (patch) | |
| tree | f1c82a35481e2dd592bb83ea0d43a5c113118d7a /drivers | |
| parent | Merge tag 'block-5.5-2020-01-10' of git://git.kernel.dk/linux-block (diff) | |
| parent | serdev: Don't claim unsupported ACPI serial devices (diff) | |
| download | linux-dev-5a96c0bbff8690afb3a2fcfc80208cd6590f6e88.tar.xz linux-dev-5a96c0bbff8690afb3a2fcfc80208cd6590f6e88.zip | |
Merge tag 'tty-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are two tty/serial driver fixes for 5.5-rc6.
The first fixes a much much reported issue with a previous tty port
link patch that is in your tree, and the second fixes a problem where
the serdev driver would claim ACPI devices that it shouldn't be
claiming.
Both have been in linux-next for a while with no reported issues"
* tag 'tty-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serdev: Don't claim unsupported ACPI serial devices
tty: always relink the port
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serdev/core.c | 10 | ||||
| -rw-r--r-- | drivers/tty/tty_port.c | 3 |
2 files changed, 11 insertions, 2 deletions
diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c index 226adeec2aed..ce5309d00280 100644 --- a/drivers/tty/serdev/core.c +++ b/drivers/tty/serdev/core.c @@ -663,6 +663,12 @@ static acpi_status acpi_serdev_register_device(struct serdev_controller *ctrl, return AE_OK; } +static const struct acpi_device_id serdev_acpi_devices_blacklist[] = { + { "INT3511", 0 }, + { "INT3512", 0 }, + { }, +}; + static acpi_status acpi_serdev_add_device(acpi_handle handle, u32 level, void *data, void **return_value) { @@ -675,6 +681,10 @@ static acpi_status acpi_serdev_add_device(acpi_handle handle, u32 level, if (acpi_device_enumerated(adev)) return AE_OK; + /* Skip if black listed */ + if (!acpi_match_device_ids(adev, serdev_acpi_devices_blacklist)) + return AE_OK; + if (acpi_serdev_check_resources(ctrl, adev)) return AE_OK; diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 5023c85ebc6e..044c3cbdcfa4 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -89,8 +89,7 @@ void tty_port_link_device(struct tty_port *port, { if (WARN_ON(index >= driver->num)) return; - if (!driver->ports[index]) - driver->ports[index] = port; + driver->ports[index] = port; } EXPORT_SYMBOL_GPL(tty_port_link_device); |