[PATCH AUTOSEL for 4.15 109/124] gpio: thunderx: fix error return code in thunderx_gpio_probe()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@xxxxxxxxxx>

[ Upstream commit 76e28f5ffed82b1e81a86c4eb8d0420515765620 ]

Fix to return error code -ENOMEM from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 5a2a30024d8c ("gpio: Add gpio driver support for ThunderX and OCTEON-TX")
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
Acked-by: David Daney <david.daney@xxxxxxxxxx>
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
 drivers/gpio/gpio-thunderx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-thunderx.c b/drivers/gpio/gpio-thunderx.c
index b5adb79a631a..d16e9d4a129b 100644
--- a/drivers/gpio/gpio-thunderx.c
+++ b/drivers/gpio/gpio-thunderx.c
@@ -553,8 +553,10 @@ static int thunderx_gpio_probe(struct pci_dev *pdev,
 	txgpio->irqd = irq_domain_create_hierarchy(irq_get_irq_data(txgpio->msix_entries[0].vector)->domain,
 						   0, 0, of_node_to_fwnode(dev->of_node),
 						   &thunderx_gpio_irqd_ops, txgpio);
-	if (!txgpio->irqd)
+	if (!txgpio->irqd) {
+		err = -ENOMEM;
 		goto out;
+	}
 
 	/* Push on irq_data and the domain for each line. */
 	for (i = 0; i < ngpio; i++) {
-- 
2.14.1