rtc: mv: fix potential race condition

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Since the driver allocates the IRQ using devm_request_irq(), this means the
IRQ is going to be automatically unregistered by devres after
mv_rtc_remove() returns.

However, mv_rtc_remove() explicitly disables the hardware clock before
devres teardown happens so the interrupt handler may run while the clock is
disabled leading to a possible bus hang when accessing registers.

Link: https://patch.msgid.link/20260625130202.1621692-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

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Alexandre Belloni 2026-06-25 15:02:00 +02:00

parent 7490b8356e

commit bcad3667a3

1 changed files with 6 additions and 16 deletions

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22

drivers/rtc/rtc-mv.c

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