From 3da0291ba9b4a429ed9226569c9014f5c7e13ac3 Mon Sep 17 00:00:00 2001 From: Hayes Wang Date: Fri, 22 May 2020 16:54:10 +0800 Subject: [PATCH] eth/r8152: fix assigning the wrong endpoint Although I think it never occurs, the code doesn't make sense, because it may allow to assign an IN endpoint to ss->ep_out. Signed-off-by: Hayes Wang --- drivers/usb/eth/r8152.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/usb/eth/r8152.c b/drivers/usb/eth/r8152.c index d9908ecc15..f201a1789b 100644 --- a/drivers/usb/eth/r8152.c +++ b/drivers/usb/eth/r8152.c @@ -1354,9 +1354,8 @@ int r8152_eth_probe(struct usb_device *dev, unsigned int ifnum, struct usb_interface *iface; struct usb_interface_descriptor *iface_desc; int ep_in_found = 0, ep_out_found = 0; - int i; - struct r8152 *tp; + int i; /* let's examine the device now */ iface = &dev->config.if_desc[ifnum]; @@ -1399,10 +1398,13 @@ int r8152_eth_probe(struct usb_device *dev, unsigned int ifnum, if ((iface->ep_desc[i].bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { u8 ep_addr = iface->ep_desc[i].bEndpointAddress; - if ((ep_addr & USB_DIR_IN) && !ep_in_found) { - ss->ep_in = ep_addr & - USB_ENDPOINT_NUMBER_MASK; - ep_in_found = 1; + + if (ep_addr & USB_DIR_IN) { + if (!ep_in_found) { + ss->ep_in = ep_addr & + USB_ENDPOINT_NUMBER_MASK; + ep_in_found = 1; + } } else { if (!ep_out_found) { ss->ep_out = ep_addr & -- 2.25.1