diff options
| 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/of/device.c | |
| parent | 8c4ff6d0094a16809a7ecdd49d71cf06b0a51326 (diff) | |
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/of/device.c')
| -rw-r--r-- | drivers/of/device.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c index f685e55e071..dafb9736ab9 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -85,6 +85,9 @@ ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len) int cplen, i; ssize_t tsize, csize, repend; + if ((!dev) || (!dev->of_node)) + return -ENODEV; + /* Name & Type */ csize = snprintf(str, len, "of:N%sT%s", dev->of_node->name, dev->of_node->type); |