linux-kernel - [PATCH] usb: usbip: remove null check

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Date:	Mon,  6 Jun 2016 22:23:32 +0100
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Valentina Manea <valentina.manea.m@...il.com>,
	Shuah Khan <shuah.kh@...sung.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	k.opasiak@...sung.com, stern@...land.harvard.edu,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH] usb: usbip: remove null check

The only caller of get_gadget_descs() has already dereferenced udc
before calling this function, so udc can not be NULL at this point of
the code and hence no use of checking it.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
---
 drivers/usb/usbip/vudc_sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/usbip/vudc_sysfs.c b/drivers/usb/usbip/vudc_sysfs.c
index 99397fa..0f98f2c 100644
--- a/drivers/usb/usbip/vudc_sysfs.c
+++ b/drivers/usb/usbip/vudc_sysfs.c
@@ -40,7 +40,7 @@ int get_gadget_descs(struct vudc *udc)
 	struct usb_ctrlrequest req;
 	int ret;
 
-	if (!udc || !udc->driver || !udc->pullup)
+	if (!udc->driver || !udc->pullup)
 		return -EINVAL;
 
 	req.bRequestType = USB_DIR_IN | USB_TYPE_STANDARD | USB_RECIP_DEVICE;
-- 
1.9.1