[PATCH 063/150] key: Fix resource leak

[Luis Henriques]

3.5.7.9 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alan Cox <alan at linux.intel.com>

commit a84a921978b7d56e0e4b87ffaca6367429b4d8ff upstream.

On an error iov may still have been reallocated and need freeing

Signed-off-by: Alan Cox <alan at linux.intel.com>
Signed-off-by: David Howells <dhowells at redhat.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 security/keys/keyctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 0f5b3f0..44d8758 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -1112,12 +1112,12 @@ long keyctl_instantiate_key_iov(key_serial_t id,
 	ret = rw_copy_check_uvector(WRITE, _payload_iov, ioc,
 				    ARRAY_SIZE(iovstack), iovstack, &iov);
 	if (ret < 0)
-		return ret;
+		goto err;
 	if (ret == 0)
 		goto no_payload_free;
 
 	ret = keyctl_instantiate_key_common(id, iov, ioc, ret, ringid);
-
+err:
 	if (iov != iovstack)
 		kfree(iov);
 	return ret;
-- 
1.8.1.2