This patch handles the following.
   - Calling the proc4430 setup multiple twice.
   - Fixes the bugs in proc4430 create function that were
     causing segmentation fault.
   - Handled wrong check for return value of kmalloc.
Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
Signed-off-by: Arun Radhakrishnan <x0051460@ti.com>