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| author | Luca Coelho <luciano.coelho@intel.com> | 2016-05-10 10:30:56 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2016-05-10 10:30:56 +0300 |
| commit | bae6692c24236d0203f88a444986d86437a858fa (patch) | |
| tree | 0f9bee1250af3046fa46049736b615b81e60f56e /include/linux/device.h | |
| parent | 46167a8fd4248533ad15867e6988ff20e76de641 (diff) | |
| parent | 57fbcce37be7c1d2622b56587c10ade00e96afa3 (diff) | |
Merge tag 'mac80211-next-for-davem-2016-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next into master
To synchronize with Kalle, here's just a big change that affects
all drivers - removing the duplicated enum ieee80211_band and
replacing it by enum nl80211_band. On top of that, just a small
documentation update.
Diffstat (limited to 'include/linux/device.h')
| -rw-r--r-- | include/linux/device.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/include/linux/device.h b/include/linux/device.h index 2d0e6e541d52..002c59728dbe 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -70,8 +70,11 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *); * @dev_groups: Default attributes of the devices on the bus. * @drv_groups: Default attributes of the device drivers on the bus. * @match: Called, perhaps multiple times, whenever a new device or driver - * is added for this bus. It should return a nonzero value if the - * given device can be handled by the given driver. + * is added for this bus. It should return a positive value if the + * given device can be handled by the given driver and zero + * otherwise. It may also return error code if determining that + * the driver supports the device is not possible. In case of + * -EPROBE_DEFER it will queue the device for deferred probing. * @uevent: Called when a device is added, removed, or a few other things * that generate uevents to add the environment variables. * @probe: Called when a new device or driver add to this bus, and callback @@ -682,6 +685,18 @@ void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res); int devm_add_action(struct device *dev, void (*action)(void *), void *data); void devm_remove_action(struct device *dev, void (*action)(void *), void *data); +static inline int devm_add_action_or_reset(struct device *dev, + void (*action)(void *), void *data) +{ + int ret; + + ret = devm_add_action(dev, action, data); + if (ret) + action(data); + + return ret; +} + struct device_dma_parameters { /* * a low level driver may set these to teach IOMMU code about |