diff options
| author | Grant Likely <grant.likely@linaro.org> | 2014-06-24 17:13:47 +0200 |
|---|---|---|
| committer | Grant Likely <grant.likely@linaro.org> | 2014-07-07 14:33:46 +0200 |
| commit | 75f353b61342b5847c7f6d8499fd6301dce09845 (patch) | |
| tree | 39181c9145ae4a6625128a9b81ebbac2011429eb /include | |
| parent | Linux 3.16-rc4 (diff) | |
| download | linux-75f353b61342b5847c7f6d8499fd6301dce09845.tar.xz linux-75f353b61342b5847c7f6d8499fd6301dce09845.zip | |
of/platform: Fix of_platform_device_destroy iteration of devices
of_platform_destroy does not work properly, since the tree
population test was iterating on all devices having as its parent
the given platform device.
The check was intended to check whether any other platform or amba
devices created by of_platform_populate were still populated, but
instead checked for every kind of device. This is wrong, since platform
devices typically create a subsystem regular device and set themselves
as parents.
Instead, go ahead and call the unregister functions for any devices
created with of_platform_populate. The driver core will take care of
unbinding drivers, and drivers are responsible for getting rid of any
child devices that weren't created by of_platform_populate.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/of.h | 1 | ||||
| -rw-r--r-- | include/linux/of_platform.h | 7 |
2 files changed, 3 insertions, 5 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index 196b34c1ef4e..abf829a1f150 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -204,6 +204,7 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size) #define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */ #define OF_DETACHED 2 /* node has been detached from the device tree */ #define OF_POPULATED 3 /* device already created for the node */ +#define OF_POPULATED_BUS 4 /* of_platform_populate recursed to children of this node */ #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags) #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags) diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h index d96e1badbee0..c2b0627a2317 100644 --- a/include/linux/of_platform.h +++ b/include/linux/of_platform.h @@ -72,7 +72,7 @@ extern int of_platform_populate(struct device_node *root, const struct of_device_id *matches, const struct of_dev_auxdata *lookup, struct device *parent); -extern int of_platform_depopulate(struct device *parent); +extern void of_platform_depopulate(struct device *parent); #else static inline int of_platform_populate(struct device_node *root, const struct of_device_id *matches, @@ -81,10 +81,7 @@ static inline int of_platform_populate(struct device_node *root, { return -ENODEV; } -static inline int of_platform_depopulate(struct device *parent) -{ - return -ENODEV; -} +static inline void of_platform_depopulate(struct device *parent) { } #endif #endif /* _LINUX_OF_PLATFORM_H */ |