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nvmem: change the signature of nvmem_unregister()

Browse source 
We switched the nvmem framework to using kref instead of manually
checking the current number of users in nvmem_unregister() so this
function can no longer fail. We also converted all remaining users
that still checked the return value of nvmem_unregister() to using
devm_nvmem_register(). Make the routine return void.

Signed-off-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: Srinivas Kandagatla <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Bartosz Golaszewski 2018-09-21 06:40:13 -07:00 • committed by Greg Kroah-Hartman
commit bf58e8820c
2 changed files with 5 additions and 12 deletions
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8
drivers/nvmem/core.c
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@ -553,20 +553,16 @@ static void nvmem_device_release(struct kref *kref)
* nvmem_unregister() - Unregister previously registered nvmem device
*
* @nvmem: Pointer to previously registered nvmem device.
*
* Return: Will be an negative on error or a zero on success.
*/
int nvmem_unregister(struct nvmem_device *nvmem)
void nvmem_unregister(struct nvmem_device *nvmem)
{
kref_put(&nvmem->refcnt, nvmem_device_release);
return 0;
}
EXPORT_SYMBOL_GPL(nvmem_unregister);
static void devm_nvmem_release(struct device *dev, void *res)
{
WARN_ON(nvmem_unregister(*(struct nvmem_device **)res));
nvmem_unregister(*(struct nvmem_device **)res);
}
/**