rtc: nvmem: disallow registering nvmem more than once

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Make rtc_nvmem_register return -EBUSY when an nvmem is already registered
for that RTC.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

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Alexandre Belloni 2018-02-12 23:47:18 +01:00

parent 2cc8212198

commit ab3ea36eda

1 changed files with 3 additions and 0 deletions

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drivers/rtc/nvmem.c

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