Thread (6 messages) 6 messages, 2 authors, 2018-09-06
STALE2941d REVIEWED: 1 (0M)

Revision v2 of 2 in this series; 1 review trailer.

Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH V2 1/4 next] net: lan78xx: Bail out if lan78xx_get_endpoints fails

From: Stefan Wahren <hidden>
Date: 2018-09-04 17:29:49
Also in: linux-usb, lkml
Subsystem: networking drivers, the rest, usb lan78xx ethernet driver, usb networking drivers · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Thangaraj Samynathan

We need to bail out if lan78xx_get_endpoints() fails, otherwise the
result is overwritten.

Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet")
Signed-off-by: Stefan Wahren <redacted>
Reviewed-by: Raghuram Chary Jallipalli <redacted>
---
 drivers/net/usb/lan78xx.c | 5 +++++
 1 file changed, 5 insertions(+)
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index a9991c5..3f70b94 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -2952,6 +2952,11 @@ static int lan78xx_bind(struct lan78xx_net *dev, struct usb_interface *intf)
 	int i;
 
 	ret = lan78xx_get_endpoints(dev, intf);
+	if (ret) {
+		netdev_warn(dev->net, "lan78xx_get_endpoints failed: %d\n",
+			    ret);
+		return ret;
+	}
 
 	dev->data[0] = (unsigned long)kzalloc(sizeof(*pdata), GFP_KERNEL);
 
-- 
2.7.4
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