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 <redacted>
---
This patch is against the 'master' branch of Jens Axboe's 'linux-block.git'
repo.
drivers/ata/pata_rb532_cf.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
Index: linux-block/drivers/ata/pata_rb532_cf.c
===================================================================--- linux-block.orig/drivers/ata/pata_rb532_cf.c
+++ linux-block/drivers/ata/pata_rb532_cf.c
@@ -115,10 +115,12 @@ static int rb532_pata_driver_probe(struc
}
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)) {