diff options
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 3a94b799f16..bc78848dd59 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -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; |