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| author | Jani Nikula <ext-jani.1.nikula@nokia.com> | 2010-03-11 18:11:45 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-19 07:12:21 -0700 |
| commit | f0eae0ed3b7d4182a6b4dd03540a738518ea3163 (patch) | |
| tree | f7432690b4df967f10643fa82f05f57aecba142f /drivers/base/platform.c | |
| parent | 178a5b35b2777346206d4b577b36d10061732f8c (diff) | |
| download | lwn-f0eae0ed3b7d4182a6b4dd03540a738518ea3163.tar.gz lwn-f0eae0ed3b7d4182a6b4dd03540a738518ea3163.zip | |
driver-core: document ERR_PTR() return values
A number of functions in the driver core return ERR_PTR() values on
error. Document this in the kernel-doc of the functions.
Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index f6bcf22e6bd1..4b4b565c835f 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -362,6 +362,8 @@ EXPORT_SYMBOL_GPL(platform_device_unregister); * enumeration tasks, they don't fully conform to the Linux driver model. * In particular, when such drivers are built as modules, they can't be * "hotplugged". + * + * Returns &struct platform_device pointer on success, or ERR_PTR() on error. */ struct platform_device *platform_device_register_simple(const char *name, int id, @@ -408,6 +410,8 @@ EXPORT_SYMBOL_GPL(platform_device_register_simple); * allocated for the device allows drivers using such devices to be * unloaded without waiting for the last reference to the device to be * dropped. + * + * Returns &struct platform_device pointer on success, or ERR_PTR() on error. */ struct platform_device *platform_device_register_data( struct device *parent, @@ -559,6 +563,8 @@ EXPORT_SYMBOL_GPL(platform_driver_probe); * * Use this in legacy-style modules that probe hardware directly and * register a single platform device and corresponding platform driver. + * + * Returns &struct platform_device pointer on success, or ERR_PTR() on error. */ struct platform_device * __init_or_module platform_create_bundle( struct platform_driver *driver, |