From 93851c8636246ae5036a89ea4577ce3b1deb70f0 Mon Sep 17 00:00:00 2001 From: Tang Bin Date: Fri, 8 May 2020 19:43:05 +0800 Subject: [PATCH] USB: EHCI: ehci-mv: fix error handling in mv_ehci_probe() [ Upstream commit c856b4b0fdb5044bca4c0acf9a66f3b5cc01a37a ] If the function platform_get_irq() failed, the negative value returned will not be detected here. So fix error handling in mv_ehci_probe(). And when get irq failed, the function platform_get_irq() logs an error message, so remove redundant message here. Signed-off-by: Zhang Shengju Signed-off-by: Tang Bin Link: https://lore.kernel.org/r/20200508114305.15740-1-tangbin@cmss.chinamobile.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/host/ehci-mv.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 849806a75f1c..273736e1d33f 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -197,9 +197,8 @@ static int mv_ehci_probe(struct platform_device *pdev) hcd->regs = ehci_mv->op_regs; hcd->irq = platform_get_irq(pdev, 0); - if (!hcd->irq) { - dev_err(&pdev->dev, "Cannot get irq."); - retval = -ENODEV; + if (hcd->irq < 0) { + retval = hcd->irq; goto err_disable_clk; } -- 2.20.1