pata_ep93xx: fix deferred probing

[ Upstream commit 5c8121262484d99bffb598f39a0df445cecd8efb ]

The driver overrides the error codes returned by platform_get_irq() to
-ENXIO, so if it returns -EPROBE_DEFER, the driver would fail the probe
permanently instead of the deferred probing.  Propagate the error code
upstream, as it should have been done from the start...

Fixes: 2fff27512600 ("PATA host controller driver for ep93xx")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Link: https://lore.kernel.org/r/509fda88-2e0d-2cc7-f411-695d7e94b136@omprussia.ru
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index badab67..46208ec 100644 (file)
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -928,7 +928,7 @@ static int ep93xx_pata_probe(struct platform_device *pdev)
        /* INT[3] (IRQ_EP93XX_EXT3) line connected as pull down */
        irq = platform_get_irq(pdev, 0);
        if (irq < 0) {
-               err = -ENXIO;
+               err = irq;
                goto err_rel_gpio;
        }