-
-/**
- * can_del_mem_list - check for stale memory allocations at driver finalization
- *
- * Checks, if there are still some memory blocks allocated and releases memory
- * occupied by such blocks back to the system
- */
-int can_del_mem_list(void)
-{
- struct mem_addr *mem;
-
-#ifdef DEBUG_MEM
- DEBUGMSG("can_del_mem_list, mem_head=%p\n", mem_head);
-#endif
- if(mem_head == NULL) {
- CANMSG("can_del_mem_list: no entries on the list - OK\n");
- return 0;
- }
-
- while((mem=mem_head) != NULL) {
- mem_head=mem->next;
- CANMSG("can_del_mem_list: deleting %p with size %d\n",
- mem->address, (int)mem->size);
- kfree(mem->address);
- kfree(mem);
- }
-
- return 0;
-}
-
-/**
- * can_request_io_region - request IO space region
- * @start: the first IO port address
- * @n: number of the consecutive IO port addresses
- * @name: name/label for the requested region
- *
- * The function hides system specific implementation of the feature.
- *
- * Return Value: returns positive value (1) in the case, that region could
- * be reserved for the driver. Returns zero (0) if there is collision with
- * other driver or region cannot be taken for some other reason.
- */
-int can_request_io_region(unsigned long start, unsigned long n, const char *name)
-{
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
- if(check_region(start,n)) return 0;
- request_region(start,n,name);
- return 1;
- #else
- return (request_region(start,n,name))?1:0;
- #endif
-}
-
-/**
- * can_release_io_region - release IO space region
- * @start: the first IO port address
- * @n: number of the consecutive IO port addresses
- */
-void can_release_io_region(unsigned long start, unsigned long n)
-{
- release_region(start,n);
-}
-
-/**
- * can_request_mem_region - request memory space region
- * @start: the first memory port physical address
- * @n: number of the consecutive memory port addresses
- * @name: name/label for the requested region
- *
- * The function hides system specific implementation of the feature.
- *
- * Return Value: returns positive value (1) in the case, that region could
- * be reserved for the driver. Returns zero (0) if there is collision with
- * other driver or region cannot be taken for some other reason.
- */
-int can_request_mem_region(unsigned long start, unsigned long n, const char *name)
-{
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
- return 1;
- #else
- return (request_mem_region(start,n,name))?1:0;
- #endif
-}
-
-/**
- * can_release_mem_region - release memory space region
- * @start: the first memory port physical address
- * @n: number of the consecutive memory port addresses
- */
-void can_release_mem_region(unsigned long start, unsigned long n)
-{
- #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
- return;
- #else
- release_mem_region(start,n);
- #endif
-}