usb: serial: Remove redundant NULL check before kfree

kfree on NULL pointer is a no-op.

Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Syam Sidhardhan 2013-03-07 01:51:12 +05:30 • committed by Greg Kroah-Hartman
commit ae8d487966