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| author | Zhang Rui <rui.zhang@intel.com> | 2014-01-14 16:46:38 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-01-17 01:59:15 +0100 |
| commit | b9f73067f32531db608e469a9ad20ce631e34550 (patch) | |
| tree | d3377f695cbdb34e9873846f8dbac79f883d5014 /drivers/base/platform.c | |
| parent | 8c4ff6d0094a16809a7ecdd49d71cf06b0a51326 (diff) | |
| download | lwn-b9f73067f32531db608e469a9ad20ce631e34550.tar.gz lwn-b9f73067f32531db608e469a9ad20ce631e34550.zip | |
platform: introduce OF style 'modalias' support for platform bus
Fix a problem that, the platform bus supports the OF style modalias
in .uevent() call, but not in its device 'modalias' sysfs attribute.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 2f4aea2428b2..bc78848dd59a 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -679,6 +679,10 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a, struct platform_device *pdev = to_platform_device(dev); 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; |