USB: qcserial: fix a memory leak in qcprobe error path

This patch adds missing kfree(data) before return -ENODEV.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 04bb759536bb..93d72eb8cafc 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -139,6 +139,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
                                         "Could not set interface, error %d\n",
                                         retval);
                                 retval = -ENODEV;
+                                kfree(data);
                         }
                         return retval;
                 }
@@ -155,6 +156,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
                                         "Could not set interface, error %d\n",
                                         retval);
                                 retval = -ENODEV;
+                                kfree(data);
                         }
                         return retval;
                 }
@@ -163,6 +165,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
         default:
                 dev_err(&serial->dev->dev,
                         "unknown number of interfaces: %d\n", nintf);
+                kfree(data);
                 return -ENODEV;
         }