staging: r8188eu: remove NULL check before vfree

vfree can handle NULL pointer as its argument.
According to coccinelle isnullfree check, remove NULL check
before vfree operation.

Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Link: https://lore.kernel.org/r/20220614133239.147076-1-dzm91@hust.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dongliang Mu 2022-06-14 21:32:29 +08:00 • committed by Greg Kroah-Hartman
commit 488ca2cb93