ASoC: mop500_ab8500: Add a NULL pointer check in mop500_ab8500_machine_init()

Avoid possible crash (NULL pointer dereference) by making
sure that dem_kzalloc() is successful.

Signed-off-by: Rajan Vaja <rajan.vaja@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed