Commit 51920830 authored by Pan Bian's avatar Pan Bian Committed by David S. Miller

net: usb: set error code when usb_alloc_urb fails

In function lan78xx_probe(), variable ret takes the errno code on
failures. However, when the call to usb_alloc_urb() fails, its value
will keeps 0. 0 indicates success in the context, which is inconsistent
with the execution result. This patch fixes the bug, assigning
"-ENOMEM" to ret when usb_alloc_urb() returns a NULL pointer.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188771Signed-off-by: default avatarPan Bian <bianpan2016@163.com>
Acked-by: default avatarWoojung Huh <woojung.huh@microchip.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b5958963
......@@ -3395,6 +3395,7 @@ static int lan78xx_probe(struct usb_interface *intf,
if (buf) {
dev->urb_intr = usb_alloc_urb(0, GFP_KERNEL);
if (!dev->urb_intr) {
ret = -ENOMEM;
kfree(buf);
goto out3;
} else {
......
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