PM / devfreq: create_freezable_workqueue() doesn't return an ERR_PTR
PM / devfreq: create_freezable_workqueue() doesn't return an ERR_PTR

The create_freezable_workqueue() function returns a NULL on error and
not an ERR_PTR.

Signed-off-by: Dan Carpenter <ff341aa343d564f9e53e9dcb6996be8c04859a66@oracle.com>
Signed-off-by: MyungJoo Ham <84146178f7c201fa3079bfc93fccba71d81dffe3@samsung.com>

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