diff options
Diffstat (limited to 'drivers/acpi/utils.c')
| -rw-r--r-- | drivers/acpi/utils.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index c4b06cc075f9..89363b245489 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -739,6 +739,7 @@ EXPORT_SYMBOL(acpi_dev_found); struct acpi_dev_match_info { const char *dev_name; + struct acpi_device *adev; struct acpi_device_id hid[2]; const char *uid; s64 hrv; @@ -759,6 +760,7 @@ static int acpi_dev_match_cb(struct device *dev, void *data) return 0; match->dev_name = acpi_dev_name(adev); + match->adev = adev; if (match->hrv == -1) return 1; @@ -806,18 +808,20 @@ bool acpi_dev_present(const char *hid, const char *uid, s64 hrv) EXPORT_SYMBOL(acpi_dev_present); /** - * acpi_dev_get_first_match_name - Return name of first match of ACPI device + * acpi_dev_get_first_match_dev - Return the first match of ACPI device * @hid: Hardware ID of the device. * @uid: Unique ID of the device, pass NULL to not check _UID * @hrv: Hardware Revision of the device, pass -1 to not check _HRV * - * Return device name if a matching device was present + * Return the first match of ACPI device if a matching device was present * at the moment of invocation, or NULL otherwise. * + * The caller is responsible to call put_device() on the returned device. + * * See additional information in acpi_dev_present() as well. */ -const char * -acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv) +struct acpi_device * +acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv) { struct acpi_dev_match_info match = {}; struct device *dev; @@ -827,9 +831,9 @@ acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv) match.hrv = hrv; dev = bus_find_device(&acpi_bus_type, NULL, &match, acpi_dev_match_cb); - return dev ? match.dev_name : NULL; + return dev ? match.adev : NULL; } -EXPORT_SYMBOL(acpi_dev_get_first_match_name); +EXPORT_SYMBOL(acpi_dev_get_first_match_dev); /* * acpi_backlight= handling, this is done here rather then in video_detect.c |