[char-misc-next 3/8] mei: nfc: fix memory leak in error path

From: Tomas Winkler
Date: Mon Oct 21 2013 - 15:15:47 EST


The flow may reach the err label without freeing cl and cl_info

cl and cl_info weren't assigned to ndev->cl and cl_info
so they weren't freed in mei_nfc_free called on error path

Cc: <stable@xxxxxxxxxxxxxxx> # 3.10+
Cc: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
---
drivers/misc/mei/nfc.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/mei/nfc.c b/drivers/misc/mei/nfc.c
index d0c6907..994ca4a 100644
--- a/drivers/misc/mei/nfc.c
+++ b/drivers/misc/mei/nfc.c
@@ -485,8 +485,11 @@ int mei_nfc_host_init(struct mei_device *dev)
if (ndev->cl_info)
return 0;

- cl_info = mei_cl_allocate(dev);
- cl = mei_cl_allocate(dev);
+ ndev->cl_info = mei_cl_allocate(dev);
+ ndev->cl = mei_cl_allocate(dev);
+
+ cl = ndev->cl;
+ cl_info = ndev->cl_info;

if (!cl || !cl_info) {
ret = -ENOMEM;
@@ -527,10 +530,9 @@ int mei_nfc_host_init(struct mei_device *dev)

cl->device_uuid = mei_nfc_guid;

+
list_add_tail(&cl->device_link, &dev->device_list);

- ndev->cl_info = cl_info;
- ndev->cl = cl;
ndev->req_id = 1;

INIT_WORK(&ndev->init_work, mei_nfc_init);
--
1.8.3.1

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