From: Jesper Juhl <jj@chaosbits.net>
Date: Sun, 23 Jan 2011 22:08:31 +0000 (+0100)
Subject: USB SL811HS HCD: Fix memory leak in sl811h_urb_enqueue()
X-Git-Tag: v2.6.38-rc5~47^2~12
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=2bd15f1f49629f110bbbbc5a2a226bec892de87c;p=~emulex%2Finfiniband.git

USB SL811HS HCD: Fix memory leak in sl811h_urb_enqueue()

In drivers/usb/host/sl811-hcd.c::sl811h_urb_enqueue(), memory is allocated
with kzalloc() and assigned to 'ep'. If we leave via the 'fail' label due
to 'if (ep->maxpacket > H_MAXPACKET)', then 'ep' will go out of scope
without having been assigned to anything, so we'll leak the memory we
allocated.
This patch fixes the leak by simply calling kfree(ep); before jumping to
the 'fail' label.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 990f06b89ea..2e9602a10e9 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -861,6 +861,7 @@ static int sl811h_urb_enqueue(
 			DBG("dev %d ep%d maxpacket %d\n",
 				udev->devnum, epnum, ep->maxpacket);
 			retval = -EINVAL;
+			kfree(ep);
 			goto fail;
 		}