media: ir_toy: free before error exiting

[ Upstream commit 52cdb013 ]

Fix leak in error path.

Signed-off-by: Peiwei Hu <jlu.hpw@foxmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>