Commit 8c751e0d authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Greg Kroah-Hartman
Browse files

nvmem: core: Check input parameter for NULL in nvmem_unregister() 



nvmem_unregister() frees resources and standard pattern is to allow
caller to not care if it's NULL or not. This will reduce burden on
the callers to perform this check.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151527.17216-4-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5825b2c6

drivers/nvmem/core.c

+2 −1
Original line number Diff line number Diff line
@@ -903,6 +903,7 @@ static void nvmem_device_release(struct kref *kref) 
 */

void nvmem_unregister(struct nvmem_device *nvmem)

{

	if (nvmem)

		kref_put(&nvmem->refcnt, nvmem_device_release);

}

EXPORT_SYMBOL_GPL(nvmem_unregister);