V4L/DVB (7734): em28xx: copy and paste error in em28xx_init_isoc

Fixes a copy and paste error in check of kzalloc return value. The check block
was copied from the previous allocation but the variable wasn't exchanged.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
1 file changed