diff options
| author | Jean Delvare <jdelvare@suse.de> | 2014-04-14 12:54:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-27 12:37:18 -0700 |
| commit | 1bb6c08abfb653ce6e65d8ab4ddef403227afedf (patch) | |
| tree | dba61f690d899880c97229b778f9fae838b9678a /include/linux/device.h | |
| parent | 5cbb00cc4aae56378bf5376a62b4df3b89c28f92 (diff) | |
| download | lwn-1bb6c08abfb653ce6e65d8ab4ddef403227afedf.tar.gz lwn-1bb6c08abfb653ce6e65d8ab4ddef403227afedf.zip | |
driver core: Move driver_data back to struct device
Having to allocate memory as part of dev_set_drvdata() is a problem
because that memory may never get freed if the device itself is not
created. So move driver_data back to struct device.
This is a partial revert of commit b4028437.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index d1d1c055b48e..5c94ac3e7972 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -673,6 +673,7 @@ struct acpi_dev_node { * variants, which GPIO pins act in what additional roles, and so * on. This shrinks the "Board Support Packages" (BSPs) and * minimizes board-specific #ifdefs in drivers. + * @driver_data: Private pointer for driver specific info. * @power: For device power management. * See Documentation/power/devices.txt for details. * @pm_domain: Provide callbacks that are executed during system suspend, @@ -734,6 +735,8 @@ struct device { device */ void *platform_data; /* Platform specific data, device core doesn't touch it */ + void *driver_data; /* Driver data, set and get with + dev_set/get_drvdata */ struct dev_pm_info power; struct dev_pm_domain *pm_domain; |