[PATCH 5.10 66/74] EDAC/xgene: Fix deferred probing

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From: Sergey Shtylyov <s.shtylyov@xxxxxx>

commit dfd0dfb9a7cc04acf93435b440dd34c2ca7b4424 upstream.

The driver overrides error codes returned by platform_get_irq_optional()
to -EINVAL for some strange reason, so if it returns -EPROBE_DEFER, the
driver will fail the probe permanently instead of the deferred probing.
Switch to propagating the proper error codes to platform driver code
upwards.

  [ bp: Massage commit message. ]

Fixes: 0d4429301c4a ("EDAC: Add APM X-Gene SoC EDAC driver")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220124185503.6720-3-s.shtylyov@xxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/edac/xgene_edac.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/edac/xgene_edac.c
+++ b/drivers/edac/xgene_edac.c
@@ -1919,7 +1919,7 @@ static int xgene_edac_probe(struct platf
 			irq = platform_get_irq(pdev, i);
 			if (irq < 0) {
 				dev_err(&pdev->dev, "No IRQ resource\n");
-				rc = -EINVAL;
+				rc = irq;
 				goto out_err;
 			}
 			rc = devm_request_irq(&pdev->dev, irq,





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