diff options
| author | Johan Hovold <jhovold@gmail.com> | 2012-10-25 10:29:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-31 09:51:36 -0700 |
| commit | 25a665eeaba137ef1758ee747d0fc8f9b42bc091 (patch) | |
| tree | 95e464be08214bc5fe2faa82f13f3806d954d198 | |
| parent | 866cf6722ef510e21baa66f839ed3a618f303794 (diff) | |
USB: sierra: fix memory leak in probe error path
commit 084817d79399ab5ccab2f90a148b0369912a8369 upstream.
Move interface data allocation to attach so that it is deallocated on
errors in usb-serial probe.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/serial/sierra.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index a8e10269b5f..a159ad0c5e1 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -171,7 +171,6 @@ static int sierra_probe(struct usb_serial *serial, { int result = 0; struct usb_device *udev; - struct sierra_intf_private *data; u8 ifnum; udev = serial->dev; @@ -199,11 +198,6 @@ static int sierra_probe(struct usb_serial *serial, return -ENODEV; } - data = serial->private = kzalloc(sizeof(struct sierra_intf_private), GFP_KERNEL); - if (!data) - return -ENOMEM; - spin_lock_init(&data->susp_lock); - return result; } @@ -915,6 +909,7 @@ static void sierra_dtr_rts(struct usb_serial_port *port, int on) static int sierra_startup(struct usb_serial *serial) { struct usb_serial_port *port; + struct sierra_intf_private *intfdata; struct sierra_port_private *portdata; struct sierra_iface_info *himemoryp = NULL; int i; @@ -922,6 +917,14 @@ static int sierra_startup(struct usb_serial *serial) dev_dbg(&serial->dev->dev, "%s\n", __func__); + intfdata = kzalloc(sizeof(*intfdata), GFP_KERNEL); + if (!intfdata) + return -ENOMEM; + + spin_lock_init(&intfdata->susp_lock); + + usb_set_serial_data(serial, intfdata); + /* Set Device mode to D0 */ sierra_set_power_state(serial->dev, 0x0000); @@ -979,6 +982,7 @@ err: portdata = usb_get_serial_port_data(serial->port[i]); kfree(portdata); } + kfree(intfdata); return -ENOMEM; } |