patch "usb: ohci-da8xx: ensure error return on variable error is set" added to usb-linus

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

usb: ohci-da8xx: ensure error return on variable error is set

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 ba9b40810bb43e6bf73b395012b98633c03f7f59 Mon Sep 17 00:00:00 2001
From: Colin Ian King <[email protected]>
Date: Tue, 7 Jan 2020 12:39:01 +0000
Subject: usb: ohci-da8xx: ensure error return on variable error is set

Currently when an error occurs when calling devm_gpiod_get_optional or calling gpiod_to_irq it causes an uninitialized error return in variable 'error' to be returned. Fix this by ensuring the error variable is set from da8xx_ohci->oc_gpio and oc_irq.

Thanks to Dan Carpenter for spotting the uninitialized error in the gpiod_to_irq failure case.

Addresses-Coverity: ("Uninitialized scalar variable")

---
 drivers/usb/host/ohci-da8xx.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

index 38183ac438c6..1371b0c249ec 100644
@@ -415,13 +415,17 @@ static int ohci_da8xx_probe(struct platform_device *pdev)
 	}
 
 	da8xx_ohci->oc_gpio = devm_gpiod_get_optional(dev, "oc", GPIOD_IN);
-	if (IS_ERR(da8xx_ohci->oc_gpio))
+	if (IS_ERR(da8xx_ohci->oc_gpio)) {
+		error = PTR_ERR(da8xx_ohci->oc_gpio);
 		goto err;
+	}
 
 	if (da8xx_ohci->oc_gpio) {
 		oc_irq = gpiod_to_irq(da8xx_ohci->oc_gpio);
-		if (oc_irq < 0)
+		if (oc_irq < 0) {
+			error = oc_irq;
 			goto err;
+		}
 
 		error = devm_request_threaded_irq(dev, oc_irq, NULL,
 				ohci_da8xx_oc_thread, IRQF_TRIGGER_RISING |

2.24.1