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authorHeikki Krogerus <heikki.krogerus@linux.intel.com>2015-03-18 11:55:12 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-03-26 23:04:42 +0100
commit9001c07995fdd1f3657408c71bca7d6c5fb87fd3 (patch)
tree6e56966eaf940add6251ccf1dd795a18c9c6112c
parentdmaengine: hsu: move memory allocation to GFP_NOWAIT (diff)
downloadlinux-9001c07995fdd1f3657408c71bca7d6c5fb87fd3.tar.xz
linux-9001c07995fdd1f3657408c71bca7d6c5fb87fd3.zip
serial: 8250_dw: remove useless ACPI ID check
Having ACPI handle does not mean the same as having ACPI identifier. The check is in any case useless, but having it prevents this driver from being used for example with multifunctional PCI devices, such as the newer Intel LPSS devices. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/tty/serial/8250/8250_dw.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index d641886b254a..cc943fe3fd68 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -391,15 +391,10 @@ static int dw8250_probe_of(struct uart_port *p,
static int dw8250_probe_acpi(struct uart_8250_port *up,
struct dw8250_data *data)
{
- const struct acpi_device_id *id;
struct uart_port *p = &up->port;
dw8250_setup_port(up);
- id = acpi_match_device(p->dev->driver->acpi_match_table, p->dev);
- if (!id)
- return -ENODEV;
-
if (!p->uartclk)
if (device_property_read_u32(p->dev, "clock-frequency",
&p->uartclk))