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Merge branch 'acpi-modules'

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* acpi-modules:
  platform: introduce OF style 'modalias' support for platform bus
  ACPI: fix module autoloading for ACPI enumerated devices
  ACPI: add module autoloading support for ACPI enumerated devices
  ACPI: fix create_modalias() return value handling
This commit is contained in:
Rafael J. Wysocki 2014-01-17 01:59:38 +01:00
commit bc411b8a64
7 changed files with 127 additions and 7 deletions
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16
drivers/base/platform.c
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@ -677,7 +677,17 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
char *buf)
{
struct platform_device *pdev = to_platform_device(dev);
int len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name);
int len;
len = of_device_get_modalias(dev, buf, PAGE_SIZE -1);
if (len != -ENODEV)
return len;
len = acpi_device_modalias(dev, buf, PAGE_SIZE -1);
if (len != -ENODEV)
return len;
len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name);
return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}
@ -699,6 +709,10 @@ static int platform_uevent(struct device *dev, struct kobj_uevent_env *env)
if (rc != -ENODEV)
return rc;
rc = acpi_device_uevent_modalias(dev, env);
if (rc != -ENODEV)
return rc;
add_uevent_var(env, "MODALIAS=%s%s", PLATFORM_MODULE_PREFIX,
pdev->name);
return 0;