[PATCH v2 2/3] PCI: rzg3s: Propagate platform_get_irq_byname() errors

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

platform_get_irq_byname() may return specific error codes such as
-EPROBE_DEFER, but rzg3s_pcie_init_irqdomain() replaces all failures
with -EINVAL.

This breaks probe deferral by preventing the driver core from retrying
probe once the interrupt provider becomes available.

Propagate the original error code instead.

Fixes: 7ef502fb35b28 ("PCI: Add Renesas RZ/G3S host controller driver")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Reviewed-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
---
v1->v2:
- Added RB tag
---
 drivers/pci/controller/pcie-rzg3s-host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-rzg3s-host.c b/drivers/pci/controller/pcie-rzg3s-host.c
index 01488660ab08..f51b5d7c1998 100644
--- a/drivers/pci/controller/pcie-rzg3s-host.c
+++ b/drivers/pci/controller/pcie-rzg3s-host.c
@@ -1019,7 +1019,7 @@ static int rzg3s_pcie_init_irqdomain(struct rzg3s_pcie_host *host)
 
 		irq = platform_get_irq_byname(pdev, irq_name);
 		if (irq < 0)
-			return dev_err_probe(dev, -EINVAL,
+			return dev_err_probe(dev, irq,
 					     "Failed to parse and map INT%c IRQ\n",
 					     'A' + i);
 
-- 
2.54.0