c - expected identifier or ‘(’ before ‘=’ token -

i'm having trouble line:

ut_slot = malloc(tab_size * sizeof ut_slot_t);

these variables defined in header file:

typedef struct _ut_slot { ... ... } ut_slot_t, *ut_slot;

error written in title, help?

change

ut_slot = malloc(tab_size * sizeof ut_slot_t); 

to

ut_slot_t *ut_slot = malloc(tab_size * sizeof *ut_slot); 

and remove ut_slot typedef:

typedef struct _ut_slot { ... ... } ut_slot_t;