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UPSTREAM: acpi_device: Have acpi_device_scope() use a separate buffer

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Have the different acpi_device_ path functions use a different static
buffer so they can be called interchangeably.

BUG=None
BRANCH=None
TEST=None

Change-Id: I270a80f66880861d5847bd586a16a73f8f1e2511
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://review.coreboot.org/15521
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/358588
Reviewed-by: Martin Roth <martinroth@chromium.org>
This commit is contained in:
Duncan Laurie 2016-06-30 14:37:37 -07:00 • committed by chrome-bot
parent 4a3f465f60
commit 741c23e45d
1 changed files with 6 additions and 1 deletions
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7
src/arch/x86/acpi_device.c
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@ -121,10 +121,15 @@ const char *acpi_device_path(struct device *dev)
/* Return the path of the parent device as the ACPI Scope for this device */
const char *acpi_device_scope(struct device *dev)
{
static char buf[DEVICE_PATH_MAX] = {};
if (!dev || !dev->bus || !dev->bus->dev)
return NULL;
return acpi_device_path(dev->bus->dev);
if (acpi_device_path_fill(dev->bus->dev, buf, sizeof(buf), 0) <= 0)
return NULL;
return buf;
}
/* Concatentate the device path and provided name suffix */