From: Tang Bin tangbin@cmss.chinamobile.com
commit 44ed240d62736ad29943ec01e41e194b96f7c5e9 upstream.
If the function platform_get_irq() failed, the negative value returned will not be detected here. So fix error handling in exynos_ehci_probe(). And when get irq failed, the function platform_get_irq() logs an error message, so remove redundant message here.
Fixes: 1bcc5aa87f04 ("USB: Add initial S5P EHCI driver") Cc: stable stable@vger.kernel.org Signed-off-by: Zhang Shengju zhangshengju@cmss.chinamobile.com Signed-off-by: Tang Bin tangbin@cmss.chinamobile.com Link: https://lore.kernel.org/r/20200602114708.28620-1-tangbin@cmss.chinamobile.co... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/host/ehci-exynos.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c index 8e3bab1e0c1f6..f433883ca2bf1 100644 --- a/drivers/usb/host/ehci-exynos.c +++ b/drivers/usb/host/ehci-exynos.c @@ -188,9 +188,8 @@ static int exynos_ehci_probe(struct platform_device *pdev) 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; }