In the Linux kernel, the following vulnerability has been resolved:

mfd: dln2: Fix memory leak in dln2_probe()

When dln2_setup_rx_urbs() in dln2_probe() fails, error out_free forgets
to call usb_put_dev() to decrease the refcount of dln2->usb_dev.

Fix this by adding usb_put_dev() in the error handling code of
dln2_probe().