[media] v4l2-mem2mem: no need to initialize b in v4l2_m2m_next_buf and v4l2_m2m_buf_remove
[media] v4l2-mem2mem: no need to initialize b in v4l2_m2m_next_buf and v4l2_m2m_buf_remove

The first time b is used, it is assigned to the first element of the rdy_queue
list. There is no need to set it to NULL before.

Signed-off-by: Philipp Zabel <db7328bbf81a38b011e8d0f5302fd54c788d0608@pengutronix.de>
Signed-off-by: Kamil Debski <c76391f0c6ca952c7a383ba141fbed195fa466af@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@osg.samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs