patch "usb: host: ehci-exynos: Fix error check in exynos_ehci_probe()" added to usb-linus

patch "usb: host: ehci-exynos: Fix error check in exynos_ehci_probe()" added to usb-linus

[gregkh]

This is a note to let you know that I've just added the patch titled

    usb: host: ehci-exynos: Fix error check in exynos_ehci_probe()

to my usb git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.

If you have any questions about this process, please let me know.


From 44ed240d62736ad29943ec01e41e194b96f7c5e9 Mon Sep 17 00:00:00 2001
From: Tang Bin <tangbin@cmss.chinamobile.com>
Date: Tue, 2 Jun 2020 19:47:08 +0800
Subject: usb: host: ehci-exynos: Fix error check in exynos_ehci_probe()

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.com
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 a4e9abcbdc4f..1a9b7572e17f 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -203,9 +203,8 @@ 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;
 	}
 
-- 
2.27.0