From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 6 Jan 2015 10:19:21 +0000 (+0300)
Subject: usb: gadget: gadgetfs: fix an oops in ep_write()
X-Git-Tag: v3.19-rc5~11^2~2^2~1
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=42d6cfa0caec4b68a7f17147fbf13a36e94a8bf2;p=~emulex%2Finfiniband.git

usb: gadget: gadgetfs: fix an oops in ep_write()

We try to free an ERR_PTR on this error path.

Fixes: b44be2462dbe ('usb: gadget: gadgetfs: Free memory allocated by memdup_user()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 08048613eed..db49ec4c748 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -441,6 +441,7 @@ ep_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	kbuf = memdup_user(buf, len);
 	if (IS_ERR(kbuf)) {
 		value = PTR_ERR(kbuf);
+		kbuf = NULL;
 		goto free1;
 	}