From: Sergey Shtylyov s.shtylyov@omprussia.ru
stable inclusion from stable-5.10.50 commit e7a376edb484fd72ccddd91c3efe1c5347179396 bugzilla: 174522 https://gitee.com/openeuler/kernel/issues/I4DNFY
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 2d3a62fbae8e5badc2342388f65ab2191c209cc0 ]
The driver overrides the error codes returned by platform_get_irq() to -ENOENT, so if it returns -EPROBE_DEFER, the driver would fail the probe permanently instead of the deferred probing. Switch to propagating the error code upstream, still checking/overriding IRQ0 as libata regards it as "no IRQ" (thus polling) anyway...
Fixes: 9ec36cafe43b ("of/irq: do irq resolution in platform_get_irq") Signed-off-by: Sergey Shtylyov s.shtylyov@omprussia.ru Link: https://lore.kernel.org/r/771ced55-3efb-21f5-f21c-b99920aae611@omprussia.ru Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com Signed-off-by: Chen Jun chenjun102@huawei.com --- drivers/ata/pata_rb532_cf.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c index 479c4b29b856..303f8c375b3a 100644 --- a/drivers/ata/pata_rb532_cf.c +++ b/drivers/ata/pata_rb532_cf.c @@ -115,10 +115,12 @@ static int rb532_pata_driver_probe(struct platform_device *pdev) }
irq = platform_get_irq(pdev, 0); - if (irq <= 0) { + if (irq < 0) { dev_err(&pdev->dev, "no IRQ resource found\n"); - return -ENOENT; + return irq; } + if (!irq) + return -EINVAL;
gpiod = devm_gpiod_get(&pdev->dev, NULL, GPIOD_IN); if (IS_ERR(gpiod)) {