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| author | Olivier Sobrie <olivier@sobrie.be> | 2015-01-30 13:21:56 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-02-01 12:33:26 -0800 |
| commit | 2e6d01ff759c5f0fc831694c01c477a6c0ebf7b1 (patch) | |
| tree | c65af7c8fceb6823875a1bf33e724ddbf66a3627 /drivers/net/usb/hso.c | |
| parent | 295fc56f465ee8e013b2889e42094da9b2bd7125 (diff) | |
| download | linux-2e6d01ff759c5f0fc831694c01c477a6c0ebf7b1.tar.gz linux-2e6d01ff759c5f0fc831694c01c477a6c0ebf7b1.tar.bz2 linux-2e6d01ff759c5f0fc831694c01c477a6c0ebf7b1.zip | |
hso: fix memory leak in hso_create_rfkill()
When the rfkill interface was created, a buffer containing the name
of the rfkill node was allocated. This buffer was never freed when the
device disappears.
To fix the problem, we put the name given to rfkill_alloc() in
the hso_net structure.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb/hso.c')
| -rw-r--r-- | drivers/net/usb/hso.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index d855cead3978..e1cfe19c72d5 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -153,6 +153,7 @@ struct hso_net { struct hso_device *parent; struct net_device *net; struct rfkill *rfkill; + char name[8]; struct usb_endpoint_descriptor *in_endp; struct usb_endpoint_descriptor *out_endp; @@ -2467,27 +2468,20 @@ static void hso_create_rfkill(struct hso_device *hso_dev, { struct hso_net *hso_net = dev2net(hso_dev); struct device *dev = &hso_net->net->dev; - char *rfkn; - rfkn = kzalloc(20, GFP_KERNEL); - if (!rfkn) - dev_err(dev, "%s - Out of memory\n", __func__); - - snprintf(rfkn, 20, "hso-%d", + snprintf(hso_net->name, sizeof(hso_net->name), "hso-%d", interface->altsetting->desc.bInterfaceNumber); - hso_net->rfkill = rfkill_alloc(rfkn, + hso_net->rfkill = rfkill_alloc(hso_net->name, &interface_to_usbdev(interface)->dev, RFKILL_TYPE_WWAN, &hso_rfkill_ops, hso_dev); if (!hso_net->rfkill) { dev_err(dev, "%s - Out of memory\n", __func__); - kfree(rfkn); return; } if (rfkill_register(hso_net->rfkill) < 0) { rfkill_destroy(hso_net->rfkill); - kfree(rfkn); hso_net->rfkill = NULL; dev_err(dev, "%s - Failed to register rfkill\n", __func__); return; |