diff mbox series

usbnet: ipheth: Remove unnecessary NULL pointer check

Message ID 1556670933-755-1-git-send-email-linux@roeck-us.net (mailing list archive)
State Mainlined
Commit e28441e2ea090a4751160a75e5b0d823116a92fb
Headers show
Series usbnet: ipheth: Remove unnecessary NULL pointer check | expand

Commit Message

Guenter Roeck May 1, 2019, 12:35 a.m. UTC
ipheth_carrier_set() is called from two locations. In
ipheth_carrier_check_work(), its parameter 'dev' is set with
container_of(work, ...) and can not be NULL. In ipheth_open(),
dev is extracted from netdev_priv(net) and dereferenced before
the call to ipheth_carrier_set(). The NULL pointer check of dev
in ipheth_carrier_set() is therefore unnecessary and can be removed.

Cc: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/net/usb/ipheth.c | 2 --
 1 file changed, 2 deletions(-)

Comments

David Miller May 4, 2019, 4 a.m. UTC | #1
From: Guenter Roeck <linux@roeck-us.net>
Date: Tue, 30 Apr 2019 17:35:33 -0700

> ipheth_carrier_set() is called from two locations. In
> ipheth_carrier_check_work(), its parameter 'dev' is set with
> container_of(work, ...) and can not be NULL. In ipheth_open(),
> dev is extracted from netdev_priv(net) and dereferenced before
> the call to ipheth_carrier_set(). The NULL pointer check of dev
> in ipheth_carrier_set() is therefore unnecessary and can be removed.
> 
> Cc: Gustavo A. R. Silva <garsilva@embeddedor.com>
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Applied to net-next.
diff mbox series

Patch

diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index a01a71a7e48d..c247aed2dceb 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -241,8 +241,6 @@  static int ipheth_carrier_set(struct ipheth_device *dev)
 	struct usb_device *udev;
 	int retval;
 
-	if (!dev)
-		return 0;
 	if (!dev->confirmed_pairing)
 		return 0;