rtc: snvs: fix possible race condition
[ Upstream commit 6fd4fe9b496d9ba3382992ff4fde3871d1b6f63d ] The RTC IRQ is requested before the struct rtc_device is allocated, this may lead to a NULL pointer dereference in IRQ handler. To fix this issue, allocating the rtc_device struct before requesting the RTC IRQ using devm_rtc_allocate_device, and use rtc_register_device to register the RTC device. Signed-off-by: NAnson Huang <Anson.Huang@nxp.com> Reviewed-by: NDong Aisheng <aisheng.dong@nxp.com> Link: https://lore.kernel.org/r/20190716071858.36750-1-Anson.Huang@nxp.comSigned-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: NSasha Levin <sashal@kernel.org>
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