If platform_get_irq() returns IRQ0 (considered invalid according to Linus)
the driver blithely passes it to ata_host_activate() that treats IRQ0 as
a sign that libata should use polling and thus complains about non-NULL
IRQ handler passed to it. Deny IRQ0 right away, returning -EINVAL from
the probe() method...
Fixes: e39c75cf3e04 ("ata: Add iMX pata support")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxxxxxxxx>
---
drivers/ata/pata_imx.c | 2 ++
1 file changed, 2 insertions(+)
Index: linux-block/drivers/ata/pata_imx.c
===================================================================
--- linux-block.orig/drivers/ata/pata_imx.c
+++ linux-block/drivers/ata/pata_imx.c
@@ -135,6 +135,8 @@ static int pata_imx_probe(struct platfor
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
+ if (!irq)
+ return -EINVAL;
priv = devm_kzalloc(&pdev->dev,
sizeof(struct pata_imx_priv), GFP_KERNEL);
