USB: Fix unload oops and memory leak in yealink driver

This patch fixes a memory leak and a kernel oops when trying to unload
the driver, due to an unbalanced cleanup.
Thanks Ivar Jensen for spotting my mistake.

Signed-off-by: Henk Vergonet <henk.vergonet@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/usb/input/yealink.c b/drivers/usb/input/yealink.c
index 575a4e672e96..7b45fd3de911 100644
--- a/drivers/usb/input/yealink.c
+++ b/drivers/usb/input/yealink.c
@@ -810,12 +810,9 @@ static int usb_cleanup(struct yealink_dev *yld, int err)
         if (yld == NULL)
                 return err;
 
-        if (yld->urb_irq) {
-                usb_kill_urb(yld->urb_irq);
-                usb_free_urb(yld->urb_irq);
-        }
-        if (yld->urb_ctl)
-                usb_free_urb(yld->urb_ctl);
+        usb_kill_urb(yld->urb_irq);     /* parameter validation in core/urb */
+        usb_kill_urb(yld->urb_ctl);     /* parameter validation in core/urb */
+
         if (yld->idev) {
                 if (err)
                         input_free_device(yld->idev);
@@ -831,6 +828,9 @@ static int usb_cleanup(struct yealink_dev *yld, int err)
         if (yld->irq_data)
                 usb_buffer_free(yld->udev, USB_PKT_LEN,
                                 yld->irq_data, yld->irq_dma);
+
+        usb_free_urb(yld->urb_irq);     /* parameter validation in core/urb */
+        usb_free_urb(yld->urb_ctl);     /* parameter validation in core/urb */
         kfree(yld);
         return err;
 }