[PATCH 4.9 47/48] EDAC/xgene: Fix deferred probing

Greg Kroah-Hartman
2022-02-07T11:14:01Z

From: Sergey Shtylyov <s.shtylyov@omp.ru>

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@omp.ru>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220124185503.6720-3-s.shtylyov@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
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
@@ -1936,7 +1936,7 @@ 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,