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| author | Johan Hovold <jhovold@gmail.com> | 2012-05-29 18:22:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-22 11:34:14 -0700 |
| commit | 9a838fe731e81658fe92d0a0b134de687e97a37d (patch) | |
| tree | df0e7d867a16b97118c0c8d9e549c5939be2a624 | |
| parent | 8bb4f1d68d063667d825d01b6ebebb48deb366a7 (diff) | |
| download | lwn-9a838fe731e81658fe92d0a0b134de687e97a37d.tar.gz lwn-9a838fe731e81658fe92d0a0b134de687e97a37d.zip | |
USB: option: fix memory leak
commit b9c3aab315b51f81649a0d737c4c73783fbd8de0 upstream.
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.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 2a5149fa8b24..63a8d3f3c0c9 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); @@ -1273,7 +1274,7 @@ 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, @@ -1409,6 +1410,15 @@ 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; |