[PATCH 4.4 58/62] usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe()

[Greg Kroah-Hartman]

From: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>

commit 1d4169834628d18b2392a2da92b7fbf5e8e2ce89 upstream.

If the function platform_get_irq() failed, the negative value
returned will not be detected here. So fix error handling in
exynos_ohci_probe(). And when get irq failed, the function
platform_get_irq() logs an error message, so remove redundant
message here.

Fixes: 62194244cf87 ("USB: Add Samsung Exynos OHCI diver")
Signed-off-by: Zhang Shengju <zhangshengju@xxxxxxxxxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20200826144931.1828-1-tangbin@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/usb/host/ohci-exynos.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -166,9 +166,8 @@ skip_phy:
 	hcd->rsrc_len = resource_size(res);
 
 	irq = platform_get_irq(pdev, 0);
-	if (!irq) {
-		dev_err(&pdev->dev, "Failed to get IRQ\n");
-		err = -ENODEV;
+	if (irq < 0) {
+		err = irq;
 		goto fail_io;
 	}