pata_octeon_cf: avoid WARN_ON() in ata_host_activate()

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[ Upstream commit bfc1f378c8 ]

Iff platform_get_irq() fails (or returns IRQ0) and thus the polling mode
has to be used, ata_host_activate() hits the WARN_ON() due to 'irq_handler'
parameter being non-NULL if the polling mode is selected.  Let's only set
the pointer to the driver's IRQ handler if platform_get_irq() returns a
valid IRQ # -- this should avoid the unnecessary WARN_ON()...

Fixes: 43f01da0f2 ("MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree.")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/3a241167-f84d-1d25-5b9b-be910afbe666@omp.ru
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Sergey Shtylyov 2021-05-18 23:38:54 +03:00 • committed by Greg Kroah-Hartman

parent 5f9aaaaac8

commit 403577f75d

1 changed files with 3 additions and 2 deletions

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drivers/ata/pata_octeon_cf.c

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