The driver overrides the error codes returned by platform_get_irq() to
-EINVAL, 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: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
---
This patch is against the 'master' branch of Jens Axboe's 'linux-block.git'
repo.
drivers/ata/sata_rcar.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-block/drivers/ata/sata_rcar.c
===================================================================
--- linux-block.orig/drivers/ata/sata_rcar.c
+++ linux-block/drivers/ata/sata_rcar.c
@@ -891,7 +891,9 @@ static int sata_rcar_probe(struct platfo
int ret = 0;
irq = platform_get_irq(pdev, 0);
- if (irq <= 0)
+ if (irq < 0)
+ return irq;
+ if (!irq)
return -EINVAL;
priv = devm_kzalloc(dev, sizeof(struct sata_rcar_priv), GFP_KERNEL);
