[PATCH 5.15 097/110] EDAC/altera: Fix deferred probing

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From: Sergey Shtylyov <s.shtylyov@xxxxxx>

commit 279eb8575fdaa92c314a54c0d583c65e26229107 upstream.

The driver overrides the error codes returned by platform_get_irq() to
-ENODEV 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: 71bcada88b0f ("edac: altera: Add Altera SDRAM EDAC support")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Acked-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220124185503.6720-2-s.shtylyov@xxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/edac/altera_edac.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -350,7 +350,7 @@ static int altr_sdram_probe(struct platf
 	if (irq < 0) {
 		edac_printk(KERN_ERR, EDAC_MC,
 			    "No irq %d in DT\n", irq);
-		return -ENODEV;
+		return irq;
 	}
 
 	/* Arria10 has a 2nd IRQ */





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