diff options
| author |   Johan Hovold <jhovold@gmail.com> | 2012-05-29 18:22:48 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-12 16:09:50 -0700 |
| commit | b9c3aab315b51f81649a0d737c4c73783fbd8de0 (patch) | |
| tree | c7004c23c1f6127c69eba6e44a21e27f4fa20223 /drivers | |
| parent | USB: option: fix port-data abuse (diff) | |
| download | linux-dev-b9c3aab315b51f81649a0d737c4c73783fbd8de0.tar.xz linux-dev-b9c3aab315b51f81649a0d737c4c73783fbd8de0.zip | |
USB: option: fix memory leak
Fix memory leak introduced by commit 383cedc3bb435de7a2 ("USB: serial:
full autosuspend support for the option driver") which allocates
usb-serial data but never frees it.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/serial/option.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 9c2f7b28e254..d12ee2fca76b 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -47,6 +47,7 @@ /* Function prototypes */ static int option_probe(struct usb_serial *serial, const struct usb_device_id *id); +static void option_release(struct usb_serial *serial); static int option_send_setup(struct usb_serial_port *port); static void option_instat_callback(struct urb *urb); @@ -1251,7 +1252,7 @@ static struct usb_serial_driver option_1port_device = { .ioctl = usb_wwan_ioctl, .attach = usb_wwan_startup, .disconnect = usb_wwan_disconnect, - .release = usb_wwan_release, + .release = option_release, .read_int_callback = option_instat_callback, #ifdef CONFIG_PM .suspend = usb_wwan_suspend, @@ -1333,6 +1334,15 @@ static int option_probe(struct usb_serial *serial, return 0; } +static void option_release(struct usb_serial *serial) +{ + struct usb_wwan_intf_private *priv = usb_get_serial_data(serial); + + usb_wwan_release(serial); + + kfree(priv); +} + static void option_instat_callback(struct urb *urb) { int err; |