linux-kernel - [PATCH 2/5] firewire: cdev: fix another memory leak in an error path

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Date:	Sat, 26 Dec 2009 01:34:29 +0100 (CET)
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	linux-kernel@...r.kernel.org
cc:	linux1394-devel@...ts.sourceforge.net,
	Clemens Ladisch <cladisch@...tmail.net>
Subject: [PATCH 2/5] firewire: cdev: fix another memory leak in an error path

If copy_from_user in an FW_CDEV_IOC_SEND_RESPONSE ioctl failed, the
fw_request pointed to by the inbound_transaction_resource is no
longer referenced and needs to be freed.

Signed-off-by: Stefan Richter <stefanr@...6.in-berlin.de>
---
 drivers/firewire/core-cdev.c |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6.33-rc2/drivers/firewire/core-cdev.c
===================================================================
--- linux-2.6.33-rc2.orig/drivers/firewire/core-cdev.c
+++ linux-2.6.33-rc2/drivers/firewire/core-cdev.c
@@ -723,6 +723,7 @@ static int ioctl_send_response(struct cl
 		if (copy_from_user(r->data, u64_to_uptr(request->data),
 				   r->length)) {
 			ret = -EFAULT;
+			kfree(r->request);
 			goto out;
 		}
 		fw_send_response(client->device->card, r->request,

-- 
Stefan Richter
-=====-==--= ==-- ==-=-
http://arcgraph.de/sr/

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